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Old 6 Mar 2006, 16:36 (Ref:1537349)   #1
Chris Townsend
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Chevron B20

CHEVRON B20

Here's the second new thread for Chevrons. Both a publication of where
I've got to and a plea for information.

The B20 was built as the 1972 combination F2/F3/FB car by Chevron.
However, the first car was built in 1971 as a development model and at least one was delivered new for the 1973 season.
All sources suggest that nine were built, and the following engine configurations are given for these cars:
1 BDA Smith; 1 BDA Richardson; 1 BDA Race Engine Services; 1 BDA Hart
5 Lotus t/c.
The t/c engines would have been fitted to the FB cars in 1972/3 and to the solitary F3 car.

Help on what the plates actually said, on what car, would be greatly valued!!
Some chassis numbers are known, but they sometimes vary on what seems to be the same car and may not be altogether helpful. So I have labelled the cars by other distinctive characteristics and then included known chassis numbers including variants.
Of the BDA engined cars we know that Lepp’s British Atlantic chassis was initially fitted with a Richardson, that Gethin’s works F2 car ran a Smith, and that Green’s car used in SE Asia had a Hart.

1: The 1971 development car [20.71.01]-Lotus t/c
According to an advert on race-cars.com this went to Fred Opert and was used by Bobby Brown in the 1971 Bogota GP, and subsequently by Brown and Jim Grob. Grob carried on using a Chevron B20 in SCCA [as both an FB and FC] for a number of years. Given the known histories of other Opert B20s it seems likely that this was 20.71.01.
Still extant in USA

2: The Skeaping car. [20.F3.1?/20.72.1?] [Lotus t/c]
A semi-works car run by Chris Skeaping in the British F3 series. Finished in February 1972 so assigned the first number in the 1972 series. Probably the B20 F3 for sale by Chevron A/S 2.8.73. Sold to Alex Lowe and used in British Monoposto and F4 series for a number of years. To Nick Crossley 1994. Currently for sale as having had only three owners [Skeaping/Lowe/Crossley].

3: The Lepp car [20.72.2/20.F2.1?]-BDA Richardson
MN report of the Mallory Park European F2 race says that Gethin appears in Lepp’s car for this race. This suggests that the Lepp car was earlier in the build sequence and the F2 cars were not ready in time. Subsequently used by Lepp in the British Atlantic series in 1972. Not known after this date, but by process of elimination [assuming nine built] the car used by Eris Tondelli in the European Hill-Climb Championship in March 1973.

4: The first 1972 works F2 car [20.72.2/20.F2.2]-BDA Smith
The regular works car for Peter Gethin in the European F2 Championship, sometimes taken over by Vic Elford. Both chassis numbers are given in race reports suggesting that a certain amount of plate or chassis switching took place, but since Lepp is racing regularly in Atlantic his car has to be a distinct entity from this one. Won 1972 Pau GP. Taken to the South American series for Dave Morgan. Sold to Tony Martin in South Africa in 1973 from there in a deal that also involved a March 722 and Brabham BT38. Run for Glenn Martin in South Africa in 1973. Subsequently unknown.

5: The first 1972 Opert car [Lotus t/c]
Delivered to Opert in April or May 1972. Used by Bobby Brown in 1972 SCCA pro championship. Given the known history of the other 1972 Opert car in 1973 this more or less has to be the car run by Joe Shepherd [Indianapolis] in SCCA and pro FB races in 1973 and 1974. Perhaps the car run by Peter Symond in SCCA in 1976.

6: The second 1972 Opert car [Lotus t/c]
Delivered to Opert in May 1972. Used by Brian Robertson to win the 1972 Canadian championship. (Since they never appear together, Robertson and Brown could have been using the same car. However, in 1973 the number of B20s appearing together suggests that Opert had to have two new cars in 1972 plus the 1971 development model sold off to Grob. Canadian Motorsports Bulletin reports that the Robertson car goes to Peter Ferguson’s Samsonite team for his girl-friend/team mate Linda Wilson in 1973. Sold back to Opert at some point, as f/s Opert, Formula June 75, p. 13, ex Robertson, Canadian Championship car. Could well be the mystery Price Cobb B20 in 1974, which appears at the same races as Shepherd and Ferguson [A B20 was recently for sale with 20.FB.14 stamped in the roll hoop, and described as ex Price Cobb, having subsequently raced in SCCA SW and SE regions to 1978.] Could be the Peter Symond car in 1976.

7: The second 1972 works F2 car [20.72.3/20.F2.3]-BDA
Appears at Oulton Park n/c F2 race for John Watson. In 1973 most likely the car of Nelson Todd in Irish libre races, and then used by Jim Sherry, Mike Nugent and Richard Parsons in successive years of the Irish Atlantic Championship. [There is an established provenance from Todd to Parsons.] MN 24.2.77 P. 15 says Parsons’s car is 'ex Kinnane'; and again MN 17.3.77 p. 8; then described as 'ex John Watson MN 9.6.77 p. 13.

8: The Ferguson car [Lotus t/c]
Appears at first round of the Canadian championship in 1973 for Peter Ferguson’s Samsonite team; described as “brand new” in Canadian Motorsport Bulletin. Retained 1974.

9: The Green car [20.72.09?] [Hart BDA]
Appears at the Singapore GP [22.4.73] driven by John Green. Retained 1974 and subsequently to Steve Millen for 1975. A car with this chassis number is now in Australia and is thought to be Millen’s car.


Summary
1972 1973 1974
1 Opert/Grob Grob Grob
2 Skeaping at works Lowe
3 Lepp Tondelli? unknown
4 Gethin/Elford Martin Martin
5 Brown Shepherd Shepherd
6 Robertson Wilson Cobb?
7 Watson Todd Sherry
8 Not raced Ferguson Ferguson
9 Not raced Green Green
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Old 6 Mar 2006, 23:08 (Ref:1537617)   #2
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Chris,

Car 9 , A 1996 letter from Dave Schollum to current owner details in many pages this car , brand new it appears to John Green [ John Green and Dave Schollum both worked for an offshore oil drilling co. in Japan] the car did the 1973 Singapore G.P. and probably ''The Gap '' hillclimb .
John Green died in 1974 and Greens wife contacted Dave Schollum regarding purchasing the car which they did , Steve Millen was contacted and flew up for the Malaysian G.P. in April, the car was shipped to Macau for the 1975 race and housed in the same garage as David Purley/Team Harper Modus. Either before or after Macau the car was shipped to NZ and fitted with a Cosworth FVC 1800cc.
In 1976 the car was sold to Ian Grey who had Caterpillar sponsorship and was painted yellow/black , he had car in S.E.Asia for about 3 years untill sold to Dick Ward in Perth Western Australia who was building a batch of sports sedans for export to the Phillipines and they used uprights / wheels etc as patterns .

Most of the components were rescued by the current owner with the assistance of Dick Ward and the car is now back to period spec owned by Harry Hickling of Canberra at the moment fitted with a Cosworth BDM [ injected BDD 1600CC. ].

Bryan.
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Old 7 Mar 2006, 07:33 (Ref:1537759)   #3
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Millen raced the Schollum car in Asia in 1974 and 1975 and in NZ between seasons
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Old 7 Mar 2006, 08:42 (Ref:1539379)   #4
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A Friend of mine has B20-72-6. Supposed to have been sold new to france and fitted with a Renault engine and used for Hillclimbs.
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Old 7 Mar 2006, 09:01 (Ref:1539396)   #5
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Quote:
Originally Posted by Ted Walker
A Friend of mine has B20-72-6. Supposed to have been sold new to france and fitted with a Renault engine and used for Hillclimbs.
A beautifully inserted spanner! Good man Ted!
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Old 7 Mar 2006, 09:09 (Ref:1539401)   #6
Ted Walker
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Allen I dont think so this time !!! I assume that the numbered list above ie 1-9 does not refer to chassis Nos ????
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Old 7 Mar 2006, 09:20 (Ref:1539410)   #7
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Ted

One sold new in France [presumably to a hillclimber] is definitely a spanner...
It might well be the Tondelli car in 1973 for example.
Might the nine built refer only to the 1972 production?

I've also learned from experience that the Chevron stated production record
does not necessarily correlate too closely with what went out the factory doors
[as you'll see on B27s]

Chris
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Old 8 Mar 2006, 09:02 (Ref:1540087)   #8
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Chris I am seeing owner to-day .I will get more gen.
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Old 9 Mar 2006, 08:37 (Ref:1540972)   #9
Ted Walker
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Re B20-72-6.Seen a photo of car and plate and a copy of a letter from Chevrons(old letter) Quote "the car was originally supplied to Pierre Maublanc in France" It was built to F2 spec
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Old 9 Mar 2006, 09:37 (Ref:1541021)   #10
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Ted

Many thanks...
This means at least nine built in 1972 then.
The one in America that is alleged to have been the Cobb car is said to have been imported into Texas in 1973 and spent five years in the SCCA. I believe it was found in Texas along with the ex Peter Robinson Chevron B39. The photo of the "plate" is a brass disc riveted on the roll hoop - which isn't exactly where Chevron put their plates.
If Lepp's car doesn't go to the European Hillclimb scene in 1973 then there is a case for it being this car, but I seem to recall Chevron themselves offering for sale an ex Lepp B20 a year or two back [or did I hallucinate this?]

Chris
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Old 12 Mar 2006, 22:54 (Ref:1545578)   #11
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I have emailed to Chris and Allen all of Harry Hicklings notes on B20's which may change a few histories around .
Harry is the owner of car # 9.

Bryan.
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Old 13 Sep 2006, 12:03 (Ref:1709527)   #12
Harry Hickling
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B20-72-9 Race History

As you have the car listed as unraced, I thought you should be aware of it's racing history post sale by Chevron. The car is definitely B20-72-9. Although as per the details sent to Bryan, I believe that there was definitely more than 9 cars, certainly more than 9 chassis No's used, and that it is possible that some of the factory racing cars where sold at the end of the season with new Chassis No's.

Key Racing results for B20-72-9 are as follows:

Asian / NZ GP Results:
  • 1973 April 22nd Singapore GP - Unplaced.
  • 26 Jan 1974. Peter Stuyvesant International. Lap Time 1.01.8.
  • 3rd 1974 Malaysian GP (Sports Car World Article).
  • 9th 1975 NZ GP – Pukekhoe and first non – F5000 car
  • 3rd 1975 Malaysian 100 Mile GP at Bata Tija Circuit – KL (Source RCN April 1975) - (Steve Millen Book refers to a 2nd place in Malaysian GP is this a different race?)
  • 3rd Nov. 1975 Macau GP (History of Macau)
  • 2nd 1975 Penang GP (Source: – Seve Millen Book).
  • 10th 1976 Macau GP – Ian Grey (Out of 40 cars).
  • 8th 1977 Macau GP – Ian Grey.
New Zealand Tasman Series:
  • 5th - Bay Park, Tasman Series Gold Star event, 29/12/1974, DNP in qualifying (Arrived too late) out of 11 cars (F2 Class Record – 1840cc)
  • 7th – Levin, Tasman Peter Stuyvesant Series International, 5/1/75, 13th Qualifying, First non 5000, 15starters. We have an excellent photo of the car leading Warrick Brown who was the eventual winner of the 1975 Tasman Series.
  • 9th – Pukekhoe, NZ GP, 12/1/75, 13th Qualifying, First Non 5000 14starters
  • 10th – Wigram, Tasman Peter Stuyvesant Series Lady Wigram, 19/1/1975, 11th qualifying, First non 5000, 14 starters. 1980 cc FVC.
  • 7th – Teretonga, Tasman Peter Stuyvesant Series International, 26/1/75, 14th qualifying, first non 5000, 14 starters. (F2 Class Record -1980cc).
  • 1975 – 1st in under 2- litre Peter Stuyvesant Series.
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Old 13 Sep 2006, 13:04 (Ref:1709552)   #13
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Welcome Harry!
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Old 14 Sep 2006, 17:43 (Ref:1710359)   #14
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Quote:
Originally Posted by Chris Townsend
Ted

One sold new in France [presumably to a hillclimber] is definitely a spanner...
It might well be the Tondelli car in 1973 for example.
Might the nine built refer only to the 1972 production?...
If it did go to Tondelli then it later returned to France as Roger Damaisin was running a B20 in French hill climbs in 1974 (Auto-Course 20 April-5 May 1974 p41).
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Old 15 Sep 2006, 09:38 (Ref:1710832)   #15
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B20-72-6 and Chassis No's

FYI - I have listed that B20-72-6 was sold to M.Maublanc (France). This would have come from the Chevron Files that Roger Andreason has. I then have it listed in 1990 as Du Toya (France). Possibly something I stumbled across. Hope that helps.

Re Chassis No's. When I spoke to Paul Owens in 1995. He was very clear:

B20 - Model Type.
71 / 72 - Year.
# - being the Chassis No (I believe for the year, but back then I didn't know anything anyway, and not enough sense to properly clarify).

So you have a range of Chassis No's.

B20-71-1
B20-72-1
B20-72-2
etc.

I believe that B20-71-1 and B20-72-1 are different cars. Making 10 definite cars raced / sold by the factory. B20-71-1 was the prototype car and you may have seen the photo's of it in the bare orange fibreglass body. No Splitters as per the Factory Cars and B20-72-9.

But to mix it up a bit the Race Records for many of the F2 events clearly have recorded Chassis No's B20-F2-2 and B20-F2-3. I don't know, but I assume if you have on the official race records that the Chassis No is B20-F2-2 then that is what would be on the car. I have all the race records and there is a definite sequence of events for each of the chassis No's.

B20-72-2 and B20-F2-2 is the same lineage of the Factory Gethin Car. Although possibly a couple of actual chassis's in this. Certainly photo's of the cars show some changes and the car was in a bad wall of death crash at Rouen. But just to confuse you all Ian Phillips writes back in March 1972 re the Watson drive at Oulton Park of B20-72-2 "being the hired works car and the fourth F2 chassis of the year". Which suggests that quite possibly some extra cars where developed. The car certainly had new body work by the end, wings and changed suspension from the original car.

B20-F2-3 was the Watson car. Probably renumbered and sold at the end. When I spoke to Paul he was quite adament that the Watson car was destroyed.

B20-72-2 has been owned by Roger Andreason for a long time and is in beautiful fully restored condition.

One last bit of trivia about B20-72-9 before I go. A couple of years back I purchased the remaining Factory FVC engine for the car. With the intention that eventually I will have it running as per Steve Millen Tasman Series Spec. As noted in the thread the Factory confirms that the car was sold new with the 1600cc BDA and after Steve Millen (Schollum Brother owned the car) it was sold to Ian Grey in 1976 who ran a Fuel Inject BDM in the car (As per current setup). From here the car went to Australia - never raced. Owned by Dick Ward in Perth, then in bits sold to myself. Now fully restored and on the race track again! At long last.
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Old 15 Sep 2006, 09:58 (Ref:1710847)   #16
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Richard Parsons described his B20 as 'ex Watson' in 1977. [See MN 9.6.77 p.13] This car also known earlier to belong to Nelson Todd, so it looks as though it survived.

I think ten built, including the 71 model that is used by Brown at Bogota. Agree with Harry that the works cars rebuilt into customer cars. For that reason we don't need more than 10 in all - if we assume that many more, where do they go. At the moment B20s seem remarkably self-contained and explicable.

I have to say that I don't completely trust the plates that works Chevron F2 cars turn up with at meetings. The car that Gethin uses at Thruxton is described by contemporary reports as the car he used at Mallory and tested before then, but it seems to have a different plate - the plate that is now on the ex Skeaping F3 car, and which makes sense on that car as the first 1972 announced and built. The situation is worse on B18s, but it seems that Derek Bennett wasn't that interested in having clear identities for cars and that when dealing with works cars [or even semi-works Opert cars as late as 1977] we need to be cautious about what was written down for the plate because the relationship between that label and the car it's attached to can be a bit tenuous.
[Two examples beside the Gethin B20 are the Opert works B29 at Zolder late in 75, which F1R notes, I believe accurately, but is actually the plate for what is by then a car running Atlantic in Canada, and Galica's car at Donington in 78, which is shown in the works build records as an Opert team car, again for North America.]

Chris
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Old 15 Sep 2006, 12:13 (Ref:1710973)   #17
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Chris, I agree with your comments.

Do you know the chassis No. of the Richard Parsons car?

Harry
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Old 15 Sep 2006, 22:47 (Ref:1711458)   #18
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Harry,

Glad to have you aboard, please post a pic. of the B20.

Bryan.
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Old 18 Sep 2006, 20:39 (Ref:1713218)   #19
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B20-72-6 definitely stays in France in 1973. At Mont Dore, Damiasin's car is "Chevron B20 ex-Maublanc". Maublanc may have started the 1973 season in this car until his Chevron-BMW was ready.

This may be a red herring but both Maublanc and Mieusset have B25-BMWs and the livery on the cars appear different. It must be the same car, mustn't it...

Allen
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Old 19 Sep 2006, 01:51 (Ref:1713347)   #20
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Harry and I have exchanged email messages in the past, and I believe the car I have sitting here in my garage is B20-72-3. I called Fred Opert about it, but he was less than talkative (probably has too many people calling him about old cars). This car is the one with the brass tag on the top of the roll loop that lists a number of "72FB14." It also has the ugly 1970's air brushed paint scheme that you can see on race-cars.com archive (http://www.race-cars.com/carsold/che.../72fb14pp.htm). The car is claimed to have a B27 nose, but if it is, it has been modified. I am not sure how to tell if the front end is actually carrying B27 components, perhaps the brake rotors are updated (vented vs solid???). The rear wing appears to be original but is now hung on a hand-made aluminum (sorry, aluminium) sheet affair that looks pretty frail.

I am slowly restoring this car. I am in the process of building a BDA engine for it. The car came with a Ford LA block (sans crank, rods, and pistons) and a Brian Hart big valve head. While I would like to build the Lotus, I am advised against it due to the ability to float the valves and bend everything all to pieces (which, I probably would stupidly do!).

Well, this message is getting too long...
Steve
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Old 22 Sep 2006, 11:25 (Ref:1716264)   #21
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72-fb-14

Hi Steve, yes I tried very hard to sort this out for you, and before you I worked on it for Jeff McKay. But I couldn't get anywhere with it. The difficulty I have is getting to something definitive enough to be able to say yes it is chassis xx. If you come across any other clues please let us know and I will keep on it for you.

By the way the car could be B20-72-3 but it could also be something else. That is the problem. If we had a more definitive history of the car, other than it being a Formula B car with specific trail of it's history would help. If we can prove it was a Fred Opert car, then that certainly helps. But even then that narrows it down to one of three B20's. (But this would help a lot).

Don't dispair though, I'm confident that sooner or later it will become clear. And in the mean time, at least we know it is a genuine B20.

One last thing to put the record straight B20-72-3 and B20-F2-3 are different cars.
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Old 22 Sep 2006, 12:23 (Ref:1716306)   #22
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The brass tag is a SCCS registration number. The number '14' is key to this as it is either the entry number of the car when first seen (less likely) or the 14th car to be registered (more likely). Either way, that's useful.

If it was the 14th car to be registered in 1972 then it must have been at Bogota, which means it must be the Bobby Brown B20-71-1 as that was the only B20 present. We need to find some entry lists for 1972 to see who ran as #14. I've checked but I have none for FB that season.

Allen
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Old 22 Sep 2006, 12:57 (Ref:1716336)   #23
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72fb14

Allen, great idea re search on the chassis no. I understand the logic that it may be the 14th 1972 FB car, but I would caution jumping to it being B20-71-1 / Bogota Car. Certainly a check on the records or even a photo of the Bogota Car would help.

Steve, by the way from the photos I originally saw from Jeff. It looked like the nose and wing had been simply been added onto the original chassis and suspension. I suspect the chassis may be pretty original. The nose and wing are not. Happy to look at detailed photo's anytime to confirm.

Steve, Jeff did have the history of the car back to Paul Liddell in 1977, and there are those very interesting No's stamped on the rear components of the car (Which is why I suspect you believe it is chassis No. 3). Suggest you post what you have definitive info on and the photo's of the specific No's that are stamped on the rear chassis components onto the site. Might generate some ideas.
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Old 24 Sep 2006, 10:27 (Ref:1717474)   #24
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Do not think that this can be the Brown Bogota chassis, because that is fairly traceble. [Though there may have been more than one B20 at Bogota if the entry list is to be believed...]
My question here is was Bogota SCCA sanctioned? The first round in the SCCA pro series at Laguna has only one B20, Brown's Opert car, but this is in May, giving plenty of time for a newer chassis [03 for example...] to turn up.

Steve, have you stripped the bodywork back to gel coat? What might be important here are the first two layers of paint above what I hope to be dark blue! Also, are there any remnants of stickers - esp scrutineer's stickers - that might give us a clue. Also, definitely can we have the numbers off teh suspension!

Chris
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Old 24 Sep 2006, 12:41 (Ref:1717558)   #25
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Good point. The SCCA weren't necessarily involved at Bogota so this could well be one of Opert's 72 cars.

Opert had cars at the JAF GP in Japan just four days before Laguna Seca so we could be reasonably confident that Brown's Fuji car was a different one to his Laguna car.
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