What Car? says...

The BMW 2 Series Gran Coupé has more than a little in common with the BMW 1 Series family car. In fact, you can think of it as that model’s more glamorous sibling; in essence, it’s the same car, but very slightly stretched, with a lower roofline and a swoopy, eye-catching makeover.

It’s the smallest member of a family of four-door BMW coupés, playing understudy to the 4 Series Gran Coupé, 6 Series Gran Turismo and range-topping 8 Series Gran Coupé.