Next BMW 3 Series coupe and cabrio will be re-badged as 4 Series coupe and cabrio. The same change will apply to the M version, that will be called M4 when the next-generation model arrives sometimes in early 2014.
Here we have our first spy shots of the BMW M4 Coupe testing near the Nürburgring. Compared to the standard 4-Series it features wider wheelcases, big new blue brakes, new M wheels and the typical the double exhausts on each side.
New M4 will be powered by an in-line six cylinder turbo engine. Details are limited but this new engine is expected to have two or three turbos and develop around 450bhp.
We expect to see more prototypes with more details in the near future. Check back for more!