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The BMW X3 xDrive20d's small but efficient turbodiesel engine makes it the cost-effective alternative.存倉 By Samuel EeFEW cars are all-rounders that score well in terms of price, performance and packaging, but the BMW X3 xDrive20d comes close.The X3 is a roomy crossover that is versatile and dynamic, and here in Singapore, it is available with either a two-litre or three-litre petrol engine - both turbocharged - driving all four wheels.Until now, that is. The latest variant to arrive by year-end is the BMW X3 xDrive20d with the little "d" suffix to denote its two-litre, four-cylinder turbodiesel.Originating from the US, where all BMW X models are built, it has a relatively small diesel engine that still manages to deliver a healthy amount of torque - 380 Newton-metres - to all four wheels through an eight-speed automatic transmission.There is good low-end torque to ensure this Sports Activity Vehicle has acceptable overtaking abilities. But with its kerb weight crossing the 1,700 kg mark, it hardly endows the X3 xDrive20d with blinding acceleration. Zero to 100 kmh takes 8.5 seconds, with the xDrive system to provide optimum traction when moving off.By varying the distribution of torque between the two axles, xDrive also ensures that the tall (1.66 metres) X3 remains surefooted in fairly fast corners.Generally, the X3 is fun to drive. As with most BMW models, it has a responsive steering and a sporty chassis for excellent driving dynamics - even for an SUV. Only the turbodiesel's lack of oomph at the upper end restrains it from more character迷你倉stic BMW performance.Instead, the engine's most important attribute has to be its frugal nature. BMW says it sips fuel at the rate of 5.6 litres per 100 km under the combined cycle, or an impressive 17.9 km per litre. And because the diesel engine is relatively small, its cost is also lower, thus helping to reduce the X3's sticker price.Overall, the BMW X3 xDrive20d offers one of the best combinations of price, power and efficiency. At 4.65 metres in length and 1.88 metres in width, this second-generation X3 is longer, wider and a bit taller than the first-generation car. Its interior is spacious and well-made, with a large boot that can be further expanded by folding down the rear seatbacks.The 2,810 mm wheelbase is 15 mm longer than before, thus benefiting rear legroom. While its sporty positioning may result in a slightly firmer ride, the back seat is not an uncomfortable place to be.Perhaps the most obvious difference between the X3 xDrive20d and other petrol-engined X3s is the sound emitting from under the hood - the diesel clatter can be especially obvious when the windows are down.Still, with its good price - expected to be slightly higher than the petrol-powered X3 xDrive20i with the same range of options - and excellent fuel efficiency, it could be the best-value luxury SUV.samuelee@sph.com.sgSPECSBMW X3 xDrive20dEngine 1,995cc inline-4 turbodieselTransmission 8-speed autoMax power 184 hp @ 4,000 rpmMax torque 380 Nm @ 1,750-2,750 rpm0-100 kmh 8.5 secsTop speed 210 kmhCO2 emissions 149 g/kmDistributor Performance MotorsTel 6319-0100自存倉