• Large-capacity, turbocharged line-up
• Strong performance across the range
• Entry-level xDrive40d is a great all-rounder

The BMW X7 is available with three engines, ranging from the xDrive40d and 40i versions to the performance focused M60i xDrive variant. All come with 48v mild-hybrid capability, aiding efficiency and responses.

It is a little bit of a shame that there’s no plug-in hybrid model available – the xDrive45e powertrain found on the X5 would be a perfect fit for the X7. We assume it’s due to packaging issues with the third row of seats.

Petrol engines

Let’s start with the xDrive 40i. It offers an impressive combination of 340hp, 5.8-second 0-62mph time and 27mpg in the real world. The six-cylinder turbocharged unit is smooth even at high revs, pulls keenly from low speeds and feels perfectly fast enough at full throttle. The purposeful but subdued exhaust note fits the bill, too.

It’s even quite efficient for its size, and with this engine the X7 is a very satisfying car to drive. It feels eager without being too frantic, and beautifully smooth and refined in its power delivery, thanks in part to the slick eight-speed automatic gearbox. It’s also quick to respond when you put your foot down or take manual control via the paddles.

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You can also tweak how responsive the steering, throttle and gearbox is via the drive mode selector – standard on all models. There’s a choice of Eco Pro, Comfort, Sport and Adaptive, with an Individual mode available for the Sport mode.

If you want more power, then the M60i xDrive version should have you covered, delivering 530hp from its 4.4-litre V8 and accelerating from 0-62mph in just 4.7 seconds – hugely impressive figures for such a big car.

Aside from raw numbers, the powertrain is smooth and makes a satisfying noise under load. Torque is also prodigious, with 750Nm on tap meaning acceleration from low revs is almost as impressive as the 0-62mph sprint. We’d perhaps question if this engine is entirely necessary, but if you want the absolute ultimate performance and refinement in your X7 then this is it.

Diesel engine

The xDrive40d is the only diesel option. It produces 352hp and 720Nm of torque (the latter almost as much as the M60i). That means 0-62mph in 5.9 seconds, as well as much more respectable fuel economy that should settle in the mid-thirties. It may well be the best compromise of the current engines on offer.

What’s it like to drive?

• Remarkably agile for its size
• Optional four-wheel steering helps here
• Standard air suspension and drive modes

For the engineering team in charge of developing the X7, the primary challenge wasn’t simply to make it comfortable – that’s comparatively easy. Instead, the hard work comes in terms of making it feel like a BMW, and on that score, it delivers.

Of course, it’s not as agile as a 1 Series Hatch or a 3 Series Saloon, but that the X7 is comparable with a 7 Series is remarkable given its sheer size and elevated ride height. Air suspension is fitted as standard, allowing for greater suppleness in ride quality and more adjustability between the drive modes of Eco Pro, Comfort (the default setting) and Sport. Those air springs also endow the X7 with greater off-road ability thanks to the system that allows for up to 80mm of adjustment.

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With the standard steering, Sport mode feels suitably weighty, encouraging you to hustle the BMW along, but the car’s more nimble overall with the optional Integral Active Steering (four-wheel steering) package. You lose a little bit of feel and weighting through the steering wheel, but gain because the rear wheels have up to three degrees of steering input, too. This is especially noticeable at lower speeds, as you can turn the X7 in a much tighter area than you’d expect it to.

At motorway speeds, they turn in the same direction as the front wheels for increased stability, which BMW claims improves passenger comfort as there’s less lateral movement for passengers in the back along curves in the road.

When speeds are much lower, they point in the opposite direction to the fronts, making the X7 even more manoeuvrable. Combine this with BMW’s Active Roll Stabilisation that prevents the car leaning so much when cornering, and it feels impressively responsive.

Ride comfort and refinement on the standard air suspension is deeply impressive. Cracks and lumps in the road are ironed out, while the amount of noise making its way into the cabin is surprisingly low given that you’re enclosed inside a 2.6-tonne SUV punching a hole in the air. Post-facelift cars are available with 23-inch alloy wheels and while we’re yet to sample them, the ride will likely still be serviceable – if not quite as imperious as versions with smaller alloys.

Is the BMW X7 also capable off-road?

BMW doesn’t really talk up the X7’s all-terrain credentials, but the xOffroad package is optionally available with modes for sand, rocks, gravel and snow.

While virtually no X7 customers will take their cars off the beaten track, BMW’s engineers understand that for it to be seen as credible, it has to be able to go off-road for the few who want to.

The four-wheel drive package, air suspension and trick steering system, which help make the X7 so capable on tarmac, also allow it to impress off-road, aided and abetted by Hill Descent Control – think of it as a low-speed cruise control for all-terrain driving.

We’ve tried the car on a very challenging off-road course meandering up and down hills, through a tight and twisty wooded area, as well as some tricky terrain that’s normally traversed by Land Rover Defenders – including some parts of river and loose, rocky inclines. It would have been challenging to walk it, let alone drive it, yet the X7 proved more than its match.

Whether it’s more capable than the similarly-sized, but lower-priced Land Rover Discovery isn’t immediately clear, but even if it’s not quite as good, the fact that it’s a discussion point illustrates how able the BMW is.