Residuals for the diesel are strongest. Petrol prices mean that the V8s tend to lose a large chunk of their list price very quickly. An on-board computer works out when X5 needs a service, so it’s down to how hard it’s been driven.

X5 performs badly on the eco front. With an average of 287 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.

Most BMWs are well built, but the X5 really is impressively put together and reliability has proved to be very sound indeed. We have heard very few complaints and major problems are few and far between. To be on the safe side, check the service history for any signs of problems – a Parker’s Car Check will tell you what to look for in the paperwork, offer simple inspection tips and identify potential, common problems, too.