2018 BMW M5 v Mercedes-AMG E63 S comparison

It’s a great Did You Know factoid that AMG wasn’t involved in the first express-spec E-Class. When Mercedes decided five years was long enough for the original (1985) M5 to have had its own way in the mid-range sports sedan arena – longer if you count the M535i – the Stuttgart brand sought the help of close-neighbour Porsche to create a muscled-up, V8-powered version of the W124 sedan.