Compare the Ascari KZ1 5.0 V8 - [2003] vs Audi R8 Spyder GT 5.2L V10 - [2011]. Find out which car is the fastest, most powerful, lightest or has the biggest engine in our top trumps style comparison page. Find out which car has the highest top speed or is the fastest accelerating, is it the Ascari KZ1 5.0 V8 or the Audi R8 Spyder GT 5.2L V10. We'll leave it up to you to decide which is your favourite.