In-depth Reviews

BMW X3 SUV - Engines, drive & performance

The BMW X3 has excellent handling and its petrol and diesel engines are plenty powerful

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4.0 out of 5

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4.0 out of 5

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Engines, drive & performance Rating

4.5 out of 5

BMW freely admits to having used the Jaguar F-Pace as a yardstick when developing the latest X3, and this is readily apparent when you spend time behind the wheel. The X3 truly lives up to the German marque's reputation for rewarding driving manners, rarely feeling like the heavy, bulky car it is. The diesel version isn't quite as sharp as the Jaguar, but it’s an extremely close-run thing. Its only real flaw is steering that feels slightly elastic around town, even if it does feel much more precise when your speed increases.

This doesn't only come as good news for the driver. The Volvo XC60 is our champion for premium SUV ride quality, but the X3 isn’t far behind here either, making it a great all-rounder. The X3 feels very smooth and isn't badly unsettled by potholes, so passengers will find it comfortable on long journeys.

Country roads are unlikely to trouble them, either. The X3 remains resolutely level even when cornering fast and the suspension keeps such tight control over things that you don't feel the body swaying from side to side. From the driver's seat, the sensation is very like that of a conventional BMW saloon, albeit from slightly higher up. This means that you have a good view into corners, too, which builds on the confidence that the X3's direct, nicely weighted steering already instils.

The powerful M40i really demonstrates this handling prowess – its 355bhp shows no sign of overcoming the X3's chassis. Instead, the responsive controls and steering make it surprisingly easy to harness all that power; the M40i feels more like a hot hatchback than a chunky SUV. We reckon it's more fun to drive than its Audi SQ5 rival, and its six-cylinder engine has more character than the Audi's, too.

Another gold star goes on the X3's report card for its off-road capability. For many buyers, the ability to deal with demanding terrain is quite a long way down the priority list when buying a new car, but the X3 is an impressive performer on challenging surfaces. Although we'd stop short of calling it a Range Rover rival in the rough stuff, the X3 feels easily capable of dealing with the wet fields and boat ramps that some SUVs struggle with.

BMW X3 diesel engines

Every diesel X3 is fitted with a mild-hybrid assistance system, consisting of a 48-volt starter-generator and a small battery that stores the energy recovered from braking, deploying it to take the load off the engine when accelerating. As well as improved fuel efficiency, the system can also provide an 11bhp power boost to help overtaking and acceleration from a standing start.

The 2.0-litre 20d opens the X3 diesel engine line-up. It develops 187bhp, which is enough to take you from 0-62mph in 7.9 seconds. This should prove enough performance for most, and the 20d's fuel economy appeals, too. It’s impressively refined, especially in combination with the standard eight-speed automatic gearbox, and it only really emits a characteristic four-cylinder diesel noise under hard acceleration. At a cruise, it’s quiet enough to completely fade into the background.

If economy is less of a priority, the 30d offers the extra smoothness that six cylinders bring, as well as increasing power to 282bhp, which brings that 0-62mph acceleration time down to an impressive 5.7 seconds. The ultimate in diesel performance is offered by the M40d, which has 335bhp and can accelerate from 0-62mph in just 4.9 seconds.

Petrol engines

A 2.0-litre 20i is offered as the entry-level X3; its 181bhp is enough to take the car from 0-62mph in 8.3 seconds. You can choose it in SE, xLine and M Sport trim, but those who want a truly sporty petrol X3 need to look at the range-topping M40i. This performance variant uses a turbocharged six-cylinder 3.0-litre engine that produces 355bhp, which makes for a very rapid SUV indeed.

Acceleration from 0-62mph takes just 4.8 seconds – as fast as a Porsche 718 Cayman – and the twin exhausts make all the right noises, with pops and bangs when you lift sharply off the accelerator in true BMW style. However, while the M40i is obviously geared towards a sporty driving experience, it's very good at gentle, quiet, high-speed cruising as well.

Hybrid engine

BMW doesn't think any of its customers want to compromise on performance, including those after a plug-in hybrid. So, with a 2.0-litre turbocharged petrol and an electric motor working in unison, the green X3 has a healthy 249bhp. It also has a party trick; put this X3 into Sport mode and something called ‘XtraBoost’ is activated, liberating an extra 41bhp from the electric motor for closer to 290bhp - so long as there's enough charge in the battery. It feels brisk either way, getting from 0-62mph in 6.1 seconds, which is more than fast enough for most SUV owners. The extra shove of the electric motor provides a diesel-like surge of acceleration and the car is impressively refined on the motorway.

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