Compare the Audi TT Roadster 2.0T FSI 200 - [2008] vs Subaru Forester 2.0 XT Premium - [2017]. 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 Audi TT Roadster 2.0T FSI 200 or the Subaru Forester 2.0 XT Premium. We'll leave it up to you to decide which is your favourite.