Choosing a fast, luxury German GT car has never been harder. These days BMW offers you the F12 M6 with a 4.4 liter biturbo V8, while Mercedes’ SL63 AMG, featuring a 5.5 liter biturbo V8, sweetens the pot with a retractable hardtop. Performance-wise, it’s almost a draw, so it all comes down to the way they drive. That will be the deciding factor. 

To help you choose your favorite German grand tourer, Chris takes both for a long spin: