The fourth and current X5, launched in 2018 on BMW’s shared CLAR platform with the 5 and 7 Series, grew longer and wider while shrinking slightly in height compared with its predecessor.[1] The range spans a four-cylinder plug-in hybrid at one end to the M Competition’s twin-turbo V8 at the other, plus a China-only long-wheelbase G18 and a low-volume hydrogen fuel-cell demonstrator, the iX5, sourcing its fuel cells from Toyota.
Unlike the E53’s ambiguous “hp” figures, this generation’s own specification table states power directly in kW for the standard petrol and diesel range, which is what is recorded for the xDrive40i. The X5 M Competition’s 616 hp figure is not similarly disambiguated, so it is converted here on the mechanical-hp reading with the metric-PS alternative noted.