The BMW 6 Series Gran Coupe is one of the most luxurious cars the company makes and is positioned as a stylish alternative to the 7 Series. It’s also a worthy alternative to the Audi A7 and Mercedes S-Class Coupe.
Everything inside is wrapped in soft leather and the asking price guarantees one of the best built BMW interiors. That said, it isn’t the most stylish or most technologically advanced out there, but it is the most driver-focused in class.
And after just a few miles down your favourite road, you’ll know this car was made to cross a continent in the quickest time possible while you remain in a cocoon of luxury and comfort. Well, comfort may be a bit too strong of a word because most of the time the suspension is firm and sporty, but that translates to impressive cross-country pace, despite the substantial weight of the car.
There is a choice between two petrol engines and one diesel – all twin turbocharged. The petrols are smooth and powerful, but the diesel impresses with near identical performance and better running costs.
The least expensive SE models get standard equipment such as leather upholstery and the best version of BMW’s iDrive infotainment system, but at this price point it should come with more out of the box.
BMW 6 Series Gran Coupe passenger space
The biggest changes, though, are in the back – thanks to the stretched wheelbase and the slightly higher roofline, there’s more space for rear passengers when compared with the two-door version. It’s also worth pointing out that the middle rear seat isn’t ideal for long journeys – it’s on the narrow side, and the positioning of the centre console means you’ll have to spread your legs akimbo if you’re relegated to that pew!
BMW 6 Series Gran Coupe boot space
At 460 litres, the boot is same size as the standard car’s, though the Gran Coupe’s rear seats do fold down completely flat, unlike the others.
For such a heavy car, the 6 Series Gran Coupe is poised and balanced seemingly defying the laws of physics. The increase in the space between the front and rear wheels (called wheelbase) also makes it even more stable at high speeds than the regular 6 Series.
The Gran Coupe also does a fine job as a more relaxed cruiser – bar a slight hint of wind whistle around the wing mirrors, the cabin is very refined, and the ride quality is acceptable, even in the firmer ‘Sport’ setting, and the eight-speed gearbox works brilliantly in both manual and automatic modes.
However, it’s not all plain sailing. As the driver’s seat is set down low, visibility fore and aft is restricted, which isn’t that ideal in a car that feels large on narrow roads and is over 5m long! At least BMW have the kindness to fit the Gran Coupe with parking sensors as standard, which should help with tight manoeuvres.
Like the standard 6 Series, there’s a fairly restricted range of engines on offer. Thankfully, they’re all brilliant, with power and performance to spare, along with impressive levels of refinement and affordable running costs.
The diesel 640d is the one to go for, as it’s just as fast as the similarly priced 640i petrol, yet is much cheaper to run, thanks to a very impressive claimed fuel economy figure of 50 mpg, which trumps the equivalent petrol’s 36 mpg.
Most of the critics reckon the diesel powered 6 Series Coupes and Convertibles are the best in their respective ranges, so it’s not a massive shock that the reports suggest the Gran Coupe follows in their footsteps. The testers all seem to be very impressed with the 640d’s plentiful power output and the impressive fuel economy, and a few even go as far to say it’s preferable over the two-door Sixes! That said, it is a wee bit more expensive than the standard car…
The 3.0 twin-turbo diesel motor is exactly the same as the one you’ll find in the 6 Series range (and, indeed, in most BMWs), so it has the same impressive statistics. Compared to the petrols, it’s a bit down on power, but the mighty torque on offer compensates for that, and quite a few testers say it sounds great for a diesel when you explore the higher revs!
The engine is also hushed and refined when you’re not pelting along at speed, and the claimed efficiency figures makes it one of the most affordable ‘four door coupes’ to run – BMW .
If you’re sold on the idea of a four-door 6 Series, then we highly recommend you have a look at this diesel model. It’s not the cheapest car in the Gran Coupe range (or even in this class – the Porsche Panamera Diesel costs a smidge less to buy!), but it’s the most affordable to run, and the engine suits the car’s more relaxed GT qualities perfectly.