Skip advert
Advertisement

BMW 640d Gran Coupe

The new four-door 6 Series Gran Coupe looks great and is the best car to drive in its class

Find your BMW 6 Series
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

At only £1,820 more than the equivalent 640d Coupe, the Gran Coupe looks tempting. It has strong economy and pace, striking looks and a spacious interior. And it’s not just a fine cruiser; specify Adaptive Drive and it outhandles a Mercedes CLS. If a 7 Series is too sensible for you and a 6 Series too cramped, this car fits the bill.

Advertisement - Article continues below

Before the Mercedes CLS arrived in 2004, coupe styling and four-door practicality rarely went hand-in-hand. Since then, the Porsche Panamera and Audi A7 have followed suit, and now BMW has joined the party with the 6 Series Gran Coupe.

The formula for the Gran Coupe is simple. By stretching the 6 Series Coupe’s wheelbase and overall length by 113mm, the company has created space for an extra set of doors, more room in the back and a bigger boot.

The design is familiar, though, with the forward-leaning, kidney grille and shark-like nose lifted from the Coupe, while the stretched profile and low roofline look sporty in a car that’s over five metres long.

On the inside, the driver-orientated dash is also taken from the 6 Series Coupe and overall fit and finish is stunning – easily on a par with the A7.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

3 Series Touring

2024 BMW

3 Series Touring

37,374 milesAutomaticPetrol2.0L

Cash £26,176
View 3 Series Touring
Kodiaq

2024 Skoda

Kodiaq

27,325 milesAutomaticPetrol1.5L

Cash £25,197
View Kodiaq
2

2018 Mazda

2

54,972 milesManualPetrol1.5L

Cash £8,497
View 2
Captur

2021 Renault

Captur

19,907 milesManualPetrol1.0L

Cash £11,397
View Captur

BMW is selling the car as a 4+1, rather than a 2+2 Coupe, so a fifth occupant can straddle the centre console. Even so, rear legroom is generous and unlike in the Coupé the rear seats fold flat, taking boot space from 460 to 1,265 litres.

There’s a choice of three turbo engines, all with an eight-speed auto and stop-start as standard. But our 640d is set to make up at least 80 per cent of UK sales.

Advertisement - Article continues below

Performance is phenomenal: 0-62mph takes 5.4 seconds (the same as the 316bhp 640i, but five-tenths down on the 444bhp 650i), while the 309bhp six-cylinder diesel claims 50.4mpg (14.2mpg more than the 640i) and emits only 148g/km of CO2.

Pull away and the engine feels smooth and hushed, while the eight-speed box shuffles gears swiftly. Squeeze the throttle in any ratio at more than 1,500rpm, and acceleration is incredible, with a roar that sounds almost as good as the six-cylinder petrol’s.

Move up through the driving modes – ECO PRO, Comfort, Comfort+, Sport and Sport+ – and the responses of the box, steering, throttle and stability system get sharper. Sport+ is perfectly judged and fun on twisty roads, relaxing rear-wheel grip.

The Gran Coupe weighs around 70kg more than the equivalent two-door, but is still great to drive. The longer wheelbase improves the ride – it’s supple even in the dampers’ stiffest setting – while the optional Adaptive Drive uses active roll bars to keep the car flat in bends.

Also fitted to our 640d was Integral Active Steering: this turns the rear wheels as well as the fronts and works superbly to ensure crisp responses from the well weighted steering.

UK buyers can pick from SE and M Sport trims, with the latter hiking the price by £4,665. SE has leather trim, sat-nav, 18-inch alloys and heated seats; M Sport adds 19-inch lightweight wheels, a bodykit and sports seats. Buy the right options, and you’ll get a car that sets the new dynamic benchmark for the class.

Skip advert
Advertisement

New & used car deals

Toyota Yaris Cross
Volkswagen Polo

Volkswagen Polo

RRP £15,270Avg. savings £2,398 off RRP*Used from £7,500
Volkswagen Golf

Volkswagen Golf

RRP £26,570Avg. savings £2,419 off RRP*Used from £10,495
Nissan Juke

Nissan Juke

RRP £18,205Avg. savings £5,129 off RRP*Used from £6,490
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Volvo XC60 PHEV boasts a whopping 124 miles of EV range
Volvo XC60 facelift 2026 - Ellis Hyde

New Volvo XC60 PHEV boasts a whopping 124 miles of EV range

The Volvo XC90 also gets the new plug-in hybrid powertrain, with the large SUV capable of 99 miles of pure electric range
News
15 Sep 2026
Car Deal of the Day: super 373-mile Skoda Enyaq is a bargain for under £300 a month
Skoda Enyaq front tracking

Car Deal of the Day: super 373-mile Skoda Enyaq is a bargain for under £300 a month

The Skoda Enyaq is easily one of the best electric SUVs money can buy. It’s our Deal of the Day for 15 September
News
15 Sep 2026
New Volkswagen ID.3 GTI: the most powerful GTI ever has arrived
Volkswagen ID.3 GTI - front

New Volkswagen ID.3 GTI: the most powerful GTI ever has arrived

Rear-wheel drive, over 320bhp and a new GTI-mode bring the fire to VW’s ID.3 Neo
News
16 Sep 2026