Compare the BMW Z3 M Coupe 3.2 2d - [1998] vs Bentley Continental Flying Spur 6.0 W12 - [2005]. 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 BMW Z3 M Coupe 3.2 2d or the Bentley Continental Flying Spur 6.0 W12. We'll leave it up to you to decide which is your favourite.