Once sales start for the 2020 Alpina XB7, which we anticipate will happen sometime early next year, it should automatically become the fastest and most powerful version of BMW‘s flagship SUV.

Currently, the best you can do as far as the X7 is concerned is opt for the M50i xDrive version, whose 4.4-liter twin turbo V8 engine produces 523 HP (530 PS) and 553 lb-ft (750 Nm) of torque. That’s good enough for a 0-60 mph (96 km/h) acceleration time of just 4.5 seconds.

The Alpina XB7 on the other hand could very well put down 600 HP (608 PS) and 590 lb-ft (800 Nm), if the 2020 Alpina B7 limousine is anything to go by – which by the way also features a 4.4-liter twin-turbocharged V8. Alas, nothing has been made official yet about the XB7’s performance.

All we know is what we can see, which in this case is a mostly camouflaged exterior. Still, we can make out the custom Alpina lettering at the front, which is hidden, sure, but it doesn’t take a cryptographer to figure out what it says.

The massive brakes are also evident, and unlike previous prototypes, this one is equipped with blue calipers so as to mirror the exterior. Most importantly though, this prototype is clearly wearing its production rear bumper, which features a quad exhaust setup instead of just one rectangular pipe per corner.

Also read: All-New Alpina B3 Spotted Testing In Sedan And Wagon Flavors

As for its interior, we can expect the XB7 to feature a hand-crafted sports steering wheel,  custom door sills and plaque, Alpina’s own selection of leather upholstery options, along with badges and contrast stitching throughout.

Meanwhile, standard features should include the very best available technologies on the X7 in general, as per the tuner’s philosophy.

Photo Credits: S. Baldauf/SB-Medien for CarScoops