Compare the Vauxhall-Opel Corsa 1.6 VXR OPC - [2010] vs BMW X4 M40i 2.0 Turbo F26 - [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 Vauxhall-Opel Corsa 1.6 VXR OPC or the BMW X4 M40i 2.0 Turbo F26. We'll leave it up to you to decide which is your favourite.