BMW has revealed a more practical version of its new 4 Series, the Gran Coupe.

Boasting an extra set of doors and a longer wheelbase, it joins the standard Coupe and Convertible in the range and serves as a roomier option for buyers wanting something a bit different to the regular 3 Series saloon.

The new 4 Series Gran Coupe gets the same bold styling as its sibling models, headed up by a controversial new kidney grille, though elsewhere the model gets sleek flowing lines, a sculpted bonnet and thin new adaptive LED headlights as standard.

The new model – which rivals the Audi A5 Sportback and Alfa Romeo Giulia – has grown in size, being 14cm longer, 3cm wider and 5cm taller than its predecessor. Much of this increased size goes into increasing interior space, with BMW promising more headroom and legroom for rear-seat passengers and a larger boot.

Engine options include a 187bhp 2.0-litre diesel (420d), and a choice of two 2.0-litre petrol units, which produce 181bhp (420i) and 242bhp (430i). Heading up the range is a new M440i xDrive model, which produces 369bhp and 500Nm of torque, enabling a 0-60mph time of 4.5 seconds. It’s also the only 4 Series Gran Coupe that comes as standard with all-wheel-drive, while is distinguished by its unique black and grey detailing to give it a sportier look.

Buyers now only have the choice of M Sport, M Sport Pro Edition and the M440i model, with all versions promising a dynamic driving experience thanks to a performance suspension setup and an optimised chassis. Optional adaptive sports suspension and M Sport brakes can also be chosen to further liven things up.

The 4 Series Gran Coupe benefits from all of BMW’s latest technology, with a 12.3-inch digital dial system and 10.25-inch touchscreen being included as standard, with the firm’s ‘Hey BMW’ voice assistant also integrated. A range of technologies are also available, including a ‘Digital Key’ that lets you unlock the car using your iPhone, as well as a ‘Reversing Assistant’ that not only helps you park but can also help you negotiate getting out of parking spaces as well.

Prices for the new 4 Series Gran Coupe start from £40,465 for the 420i M Sport and rise to £54,670 for the M440i. Order books are now open, with first deliveries expected in November.