A BMW executive has confirmed the new 4 Series Gran Coupé is set to be revealed “pretty soon”.

The four-door model will join the already unveiled coupé and convertible in the 4 Series range, which is topped by the new M4. The Munich-based firm’s broader line-up also includes Gran Coupé versions of the 2 Series and 8 Series.

Christopher Weil, the head of exterior design at BMW, promised GoAuto.com.au the newcomer would be “stunning”.

“The four-door is also very muscular, very elegant so it will be – as you’ve seen already on concept cars which are kind of reflecting the looks of the 4 Series Gran Coupé – the same way as the coupé, let’s say,” Weil said.

“Of course, the roofline is different but the car will be stunning,” he added.

The publication speculated the 4 Series Gran Coupé would hit the market in 2021.

Weil said the newcomer would be aimed at customers who valued “non-conformity” but still required a degree of practicality.

“The two-door coupé is, of course, more pure and even more expressive, so it’s not fitting to every life situation. Therefore, the four-door coupé fits in.”