True MPG: Most and least efficient luxury cars and SUVs
What Car?'s True MPG tests show what fuel economy you can really expect from a car. Here, we reveal the best and worst-performing luxury models we've ever tested...
The official MPG figures published in car sales brochures can tempt you into buying a certain model, but those results are usually misleading and you probably won't be able to match the figures when you take the car home. So, to show you the sort of fuel economy you can expect in real-world use, What Car? does its own True MPG tests.
Here, we're counting down the top 10 luxury cars and luxury SUVs. The cars in these classes are all highly desirable and sought out for their sumptuous interiors, high levels of comfort and supreme refinement. In this class, buyers' expectations are high but, despite the obvious opulence, decent fuel economy is still an important factor.
Here, we reveal which models cost the most – and the least – to run.
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