Joining the four-door coupe trend pioneered by the Mercedes-Benz CLS 550, BMW adds rear doors to its 6-series, calling it a Gran Coupe.
At first glance, the 6-series Gran Coupe seems an odd overlap with the 7-series. BMW says the Gran Coupe fills a niche, being a car for buyers who want the sporty look of the 6-series, but also want a usable rear seat.