The 2018 BMW M5 is massively quick. The F90 is the first four-wheel-drive M5, meaning it has buckets of traction to put down its 600hp. But is it faster than a diesel Seat Arosa?
Admittedly, this isn’t any old Seat Arosa. It’s been tuned by diesel specialists Darkside Developments to produce 550hp and 650lb ft of torque.