Range-topping BMW X7 rivals Mercedes-Benz GLS

Previewed by the Concept X7 at last year’s Frankfurt show, the X7’s key design elements include a large kidney grille in an upright front end, angular LED headlights with optional laser projectors, a heavily contoured bonnet, a tall glasshouse and a two-piece electric tailgate.

In keeping with its upmarket aspirations, the new model makes extensive use of chrome exterior accents and comes in two trim packages: a standard variant and the more style- focused M Sport alternative.

At 5151mm in length, the X7 is a considerable 230mm longer than the new X5 and just 89mm shorter than BMW’s longest production car, the existing long-wheelbase 7 Series. The width and height of the new BMW are 1990mm and 1805mm respectively, and it has a 3105mm wheelbase.

Inside, the X7 follows the same design theme as the latest X5, with a multi-layered dashboard that houses a digital instrument panel and a standard 12.3in touchscreen infotainment display.

Standard equipment on all models includes four-zone air conditioning, soft-close doors, a three-piece glass sunroof and a park assistant function with a reversing camera.

All three rows of seats have electric adjustment, and buyers can specify a six-seat option in a 2+2+2 configuration that includes individual second-row seats. The second row of seats are said to offer 90mm more leg room and 30mm more head room than the X5.

Luggage capacity varies from 326 litres with all seven seats in place to 740 litres with the two rearmost seats folded into the boot floor. With the second row seats stowed via a standard electric mechanism, the maximum load capacity rises to 2120 litres.

Four X7 models have been confirmed, although just three are destined for the UK. The expected volume-selling models include the X7 xDrive40i, which uses a turbocharged 3.0-litre straight- six petrol engine with 335bhp and a 0-62mph time of 6.1sec. It manages 24.7mpg combined and emits 261g/km of CO2.