From memory, the 'old' stig drove the rx8 round the track 0.6 seconds quicker than the current stig.
The 8 is a cool car to drive

I actually think the Alfa looks kinda cool from the front...but that's it. The Audi TT is SOOOO much better looking than the old model..but then old model was just an upturned bath tub.
Hitting 253mph in the veyron was a nice stunt and probably was the best way to show the general public that getting from 200mph to 253mph is a real tough challenge and requires uber HP. Choosing James May was probably a good choice as the whole experience was rather understated.
Oh well, James can't say he is the fastest TG presenter...that award goes to Hamster
