[TheNewBob]

The 2006-spec Alfa V6 in the Vertigo has been increased in capacity... I think to 4.0 litres? or something very similar, so it is also too big for LMP2 right now.

It's an interesting thought of stock units - if it's to allow cheaper running whilst still being competitive, it can bring up something of a fine line to follow. Make the stock blocks too competitive, and the race-bred engines will disappear. But if the stock units aren't quick enough, then the idea will die off very quickly through lack of interest.

Having said this, if they raise the engine capacity to suit the stock blocks, then the next generation of racing engines will be made bigger to suit the regs, thus perhaps making the stock units uncompetitive once more.

So, would they introduce a "turbo-only" feature for pukka race-bred engines and keep the 2.0 litre rule and let the stock blocks have N/A status all alone? There is quite a lot to backfire if they don't get it right with the rules.