New BMW X5 review, road test

Responsive straight-six diesel packs a big punch; is quite efficient too.

For its size and the amount of performance available on tap, the X5 is quite economical, especially when set in Eco Pro mode. In this mode, the gearbox upshifts at the earliest and the throttle map is altered for better economy. In our test, the X5 managed a respectable 7.8kpl in the city and 11.5kpl on the highway, giving it a combined efficiency of a good 9.65kpl. With a big 85-litre tank, you can expect it to cover about 820km between fill-ups.