Well I didn't get to find out today because he got there late lol I did try it with a Audi R8 v8 and was having a good go for 3 or 4 laps

then on cool down lap the cossie broke :-( The diff started making some funny noises on the slow tight corners it sounded like I had something rolling round in the boot. Luckily I was then coming round the last corner before the pit straight. Then as I pulled up in the pit garage everyone else arrived.
So to all who said the BMW cos it'd drive home are correct lol