Long service intervals and slow depreciation are a plus point, but it also suffers heavy fuel consumption, and servicing costs and insurance are high.

M-Class performs badly on the eco front. With an average of 293 g/km CO2 across the line-up, its emissions are high for a large 4×4. However, it’s worth noting that the line up has a high number of diesel models, bringing the average down and giving buyers more choices of low-emission versions. Diesels typically produce less CO2 than petrol engines with similar power outputs.

The range is quite thirsty, averaging 25 mpg.

There are some very un-Mercedes-like squeaks and rattles thanks no doubt to its American rather than German construction. However, mechanical reliability is generally sound and durability is only tested if it’s regularly used off-road (and most aren’t). Owners have high expectations however and the ML doesn’t always live up to these.