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

Sorento

2022 Kia

Sorento

39,245 milesAutomaticPetrol1.6L

Cash £30,600
View Sorento
3-Door Hatch

2021 MINI

3-Door Hatch

13,600 milesAutomaticPetrol1.5L

Cash £15,745
View 3-Door Hatch
Qashqai

2020 Nissan

Qashqai

30,144 milesManualPetrol1.3L

Cash £11,897
View Qashqai
Fiesta

2021 Ford

Fiesta

69,368 milesManualPetrol1.0L

Cash £9,397
View Fiesta

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

Vauxhall Corsa

Vauxhall Corsa

RRP £19,870Avg. savings £4,467 off RRP*Used from £9,222
Volkswagen Polo

Volkswagen Polo

RRP £15,270Avg. savings £1,925 off RRP*Used from £6,777
Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £5,965 off RRP*Used from £9,990
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,144 off RRP*Used from £12,790
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Citroen 2CV: £13k electric city car to lean on brand nostalgia
Citroen 2CV exclusive image 2026

New Citroen 2CV: £13k electric city car to lean on brand nostalgia

A 2CV-inspired small car is in the works, designed to bridge the gap between the Ami quadricycle and e-C3 supermini
News
24 Apr 2026
New Omoda 4 on its way to take on the Nissan Juke
Omoda 4 - front angled

New Omoda 4 on its way to take on the Nissan Juke

Sharply styled small SUV is ready to expand Omoda’s range and steal sales from the likes of Nissan Juke
News
24 Apr 2026
New Zeekr 8X review: 1,381bhp plug-in hybrid SUV is an absolute tech-fest
New Zeekr 8X plug-in hybrid - front tracking

New Zeekr 8X review: 1,381bhp plug-in hybrid SUV is an absolute tech-fest

While the Zeekr 8X comes with huge levels of power, space and tech, it can't quite match its European rivals when it comes to its driving experience.
Road tests
25 Apr 2026