Behold, people - this week we've got the first ever snaps of the production BMW 6 Series Gran Coupé spied during testing. The saloon-coupé is a take on the F13 6 Series Coupé and features frameless windows. The photo also shows the same front and rear bumpers as the existing 6 Series models F12 and F13, although this new incarnation is quite a bit longer than the 6 Series Coupé and Convertible. The concept Gran Coupé unveiled last year was longer than five metres compared with the 4.9m length of the 6 Series Coupé. This spy shot suggests a similar increase in size. BMW is apparently so fond of the Gran Coupé idea that it is already looking into a version based on the next 3 Series. This car might be called the 4 Series Gran Coupé and, according to sources, an M4 Gran Coupé is being considered as well. Expect the 6 Series model to hit showroom floors sometime next year.