Compare the Bentley Continental Flying Spur V8 - [2014] vs BMW 1 Series M140i xDrive F20 - [2016]. 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 Bentley Continental Flying Spur V8 or the BMW 1 Series M140i xDrive F20. We'll leave it up to you to decide which is your favourite.