400k only? That is a frickin' bargain.
This same car is sold on
www.carclassic.com for 750 000$ (so I'd guess the reserve is around there).
I'd buy that for 400k. Not at 750 though. Depending on the year. I'd buy a first year/model GT1 for 750k. And I would never buy an F50 for that money (they sell around 650k), neither would I get a McLaren for 1.2M$.
Quite surprisingly, it actually is a bad car (relatively). I have a friend pro-driver (Richard Spenard, if anyone knows) and he's driven one, and he said it really felt like a 911 frint end with a better rear. He wasn't fond of it. Said the Saleen S7 was much better balanced.
I'd get both
