Lotus Cortina question - can anyone help?

[Maisie]

Just read in Classic Motor Monthly magazine that the Oselli company are looking for a Lotus Cortina. Text as follows:

"Classic car specialist Oselli hope an ex-Sir John Whitmore racing Lotus Cortina could be a star at the company's 40th birthday celebrations - if it can be found.

Oselli is planning a Ruby Anniversary party at its headquarters in Witney, Oxfordshire, and directors David Eales and Fay Dolan are keen to have on display a representative selection of race and rally cars with which Oselli has been involved since being founded in 1962.

Fay has delved into the firm's archives and unearthed photographs of MGs and Aston Martins - two marques for which Oselli is famous - and Minis. Amongst these Fay also found a picture of a Ford Lotus Cortina captioned simply "Sir John Whitmore 1965"

The car is on an unidentified race track(TimD reckons Graham Hill bend at brands) and is in characteristic Sir John Whitmore pose, with the inside front wheel clear of the track and a dent on the driver's side where it has had an altercation with another competitor. The registration number is JTW (Sir John's initials?) 498C.

"Unlike most other photographs I have dug out, this one carries no indication of what Oselli's involvement was," said Fay. "Although an MG and Aston Martin specialist, the company certainly did prepare other makes for racing or rallying, and it would be no surprise if this car was one of them.

"I suspect there are many enthusiasts with a deep knowledge of saloon car racing who could immediately identify the track and probably the actual event in which Sir John was competing, but any Oselli involvement may be more difficult to confirm.

"And even if we did discover that we prepared the car, it may no longer be in existence."

Fay also invited the owners of race and rally cars which Oselli prepared to contact her. "Our space is rather limited, but we would love to have a truly representative selection on display. The company has a superb record in motor sport, and we would want our celebrations to reflect that."

She can be contacted on 01993 849610 or email david.eales@oselli.com

Can anyone help out?