Is newer really always better?
The newly introduced BMW M4 Coupe has been receiving rave reviews since its recent media launch. But how does it compare to the previous king of the class, the Mercedes-Benz C63 AMG Coupe (here in the special Edition '507' guise)? Does the BMW's tech and novelty make up for what it lacks for in cylinders and power? Autocar's Steve Sutcliffe hits a closed road with the two contenders, and comes back with a pretty conclusive answer.
Check out the video for the full comparison: