Compare the Pontiac G6 GTP 3.9 V6 - [2006] vs Alpine A310 2.7 V6 - [1976]. 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 Pontiac G6 GTP 3.9 V6 or the Alpine A310 2.7 V6. We'll leave it up to you to decide which is your favourite.