BMW 6-Series 4-door Gran Coupe Spied

BMW 6-Series 4-door Gran Coupe Spy Photo by worldcarfans
Although BMW is usually the first to arrive at the party, this time they're fashionably late. Following the Mercedes CLS, Audi A7 and yes, even the Porsche Panamera, prototypes of the 6-Series four-door have finally crossed the spy photographer's lens.

First introduced as the Concept Gran Coupe in Beijing last year, then confirmed for