Compare the Rover P5 B 3.5 V8 - [1967] vs Mazda 6 Sport MZR 2.3i - [2001]. 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 Rover P5 B 3.5 V8 or the Mazda 6 Sport MZR 2.3i. We'll leave it up to you to decide which is your favourite.