Compare the BMW 5 Series M5 Pure Metal Silver Edition F10 - [2015] vs Maserati Barchetta Stradale 2.0 V6 Biturbo - [1991]. 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 5 Series M5 Pure Metal Silver Edition F10 or the Maserati Barchetta Stradale 2.0 V6 Biturbo. We'll leave it up to you to decide which is your favourite.