New BMW M5 vs Mercedes-AMG E63 S - DRAG RACE, ROLLING RACE & BRAKE TEST

This is the ultimate BMW vs Mercedes showdown. We wanted to find out which is quickest - the new 2018 F90 BMW M5, with its 600hp twin turbo V8, or the Mercedes-AMG E63 S and its 612hp twin turbo V8. Both have loads of space, both are super luxurious, both cost almost £90,000 and both have clever all-wheel-drive systems which can be switched into rear-wheel-drive only mode. But we didn't use that for this carwow challenge. This video is all about acceleration and stopping performance. Ma