True MPG: most efficient prestige SUVs
What Car?'s True MPG tests show what fuel economy you can really expect from a car. Here, we reveal the best-performing prestige SUVs we've ever tested...
The official government MPG figures published in sales brochures can tempt you into buying a particular car, but those results are often misleading. Fortunately, What Car?'s True MPG tests reveal what sort of fuel economy you can expect in the real world.
To ensure accuracy and repeatability, we use strictly controlled laboratory conditions, but the tests are based on a real-world route that takes in town, rural and motorway driving.
The results reflect what's achievable if you’re driving gently and sticking to speed limits but aren’t resorting to any unrealistically slow acceleration or special 'hypermiling' techniques.
Below, we count down the 10 most efficient prestige SUVs we've tested to date. After all, while you're unlikely to be considering one of these cars if you're on a tight budget, that doesn't mean you want to throw money away unnecessarily.
The 10 most fuel-efficient prestige SUVs:
10. Audi SQ7
True MPG 30.8mpg
Go for the sporty S version of the Audi Q7 and more than 30mpg is realistic. That's not bad when you consider that it weighs more than two tonnes and can blast from 0-60mph in just 4.6sec.
9. Volvo XC90 D5
True MPG 31.9mpg
The latest Volvo XC90 combines a high-quality, spacious and versatile interior with plenty of kit and precise handling. Just bear in mind that you have to put up with a rather firm ride, while its economy is only slightly better than the SQ7's, despite that being a much faster car.
8. Porsche Macan Diesel
True MPG 32.8mpg
Porsche no longer offers this diesel version of the Macan, but if you can find one on the used market, you'll be getting an SUV that combines a 32.8 True MPG figure with handling worthy of a hot hatch.
6. Audi Q7 3.0 TDI 272
True MPG 34.0mpg
The Audi Q7 is our reigning Luxury SUV of the Year, because it's one of the most comfortable, quiet and practical cars on sale today. In fact, it earned more stars in our 16-point test than any other car.
6. Volvo XC40 D4
True MPG 35.4mpg
Volvo's XC40 is another What Car? Award winner, having scooped Family SUV of the Year this January and our overall Car of the Year title in 2018. It's a stylish as it is safe, and it has a classier interior than any of its similarly priced rivals.
5. Volvo XC60 D4
True MPG 36.5mpg
The XC60 isn't as easy to recommend as the XC40, mainly because its ride is on the firm side. However, it does have a slightly better True MPG figure, despite being a bigger car.
4. Alfa Romeo Stelvio 2.2D 210
True MPG 37.5mpg
If your top priority is a plush interior, the Stelvio is best avoided, because it features too many lightweight plastics. But if you're more interested in nimble handling, few SUVs will suit you better.
3. Audi Q5 2.0 TDI 190
True MPG 41.0mpg
For a more rounded car that's even easier on fuel than the Stelvio, look no further than the latest Audi Q5. Okay, it's not as much fun in the corners, but it offers more space, a classier interior, a more sophisticated infotainment system and a smoother and quieter four-cylinder diesel engine.
2. DS 4 Crossback 1.2 Puretech 130
True MPG 42.6mpg
The runner-up spot on this list goes to the DS 4 Crossback, but look past its 42.6 True MPG figure and there's little to recommend it for. Not only is its ride far too stiff, but also its interior feels cheap and it's not very practical.
Audi Q2 1.4 TFSI 150
True MPG 45.3mpg
It may be Audi's smallest and cheapest SUV, but the Q2 still feels suitably premium inside. What's more, it offers fun handling to go with its True MPG of 45.3 – the best figure of any prestige SUV we've tested.
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