BMW has officially launched the 4-Series moniker with this coupe concept. The production version will be the successor of the current 3-Series Coupe as BMW wants to use the 4-Series for Coupe, GranCoupe and Cabrio versions of the 3-Series from now on. Set to debut next month at the 2013 Detroit Motor Show, the stunningly beautiful concept is 4,641mm long, 1,826mm wide and is 1,362mm tall. This means that it’s 29mm longer, 44mm wider and 16mm lower in comparison to the current 3-Series Coupe. In addition, the wheelbase has grown by 50mm to 2,850mm, while the front and rear tracks have been increased by 45mm and 80mm.
Looking pretty much production-ready, the BMW 4-Series Coupe Concept adopts a lot of its styling cues from the current model but adds a few tweaks that make it look considerably better. It rides on an exclusive set of 20-inch multi-spoke alloy wheels.
The interior cabin also seems to be production-ready, featuring a driver-centric dashboard that was taken from the 3-Series. As you would expect from a coupe, the doors are longer while the trim panels have a different, more elegant finish.
There aren’t any details about the engine lineup that will be offered when the production version will hit the market in late 2013 or early 2014. Most likely, the German automaker plans on introducing the car at next year’s Frankfurt Motor Show. BMW is probably working on an M4 flagship that is expected to get a 6-cylinder turbo engine.