Launched in 2018, the X7 is a relatively new model in BMW's model lineup, but the three-row SUV is due to receive a facelift to fight off its rivals in the crowded luxury SUV market. Prototypes of the updated X7 have been spied on the streets, and now cold-weather testing has begun as BMW continues to refine the large luxury SUV.

Judging from the camouflage, this isn't going to be a minor nip and tuck, either. At the front, the X7's face is masked with a hefty amount of camouflage, but some of the design changes are easy to spot.

With new headlights positioned lower, even wider kidney grilles, and a redesigned hood, the X7 prototype strongly resembles the refreshed 7 Series, so it looks like BMW is applying these updates to keep the designs looking consistent.

At the back, the changes are less significant, however. Expect the rear to receive the standard facelift treatment, with minor changes applied to the bumper and updated taillight graphics. We still don't have any photos of the cabin to share, but it's probably safe to assume the infotainment system will be upgraded and the latest driver assists will be added. There could also be some minor trim updates.

It's unclear if the BMW will make any changes under the hood. In its current guise, the BMW X7 is offered with a 3.0-liter turbocharged inline-six producing 335 horsepower and 330 lb-ft of torque as standard or a 4.4-liter twin-turbo V8 rated at 523 hp and 553 lb-ft in the range-topping M50i.

BMW has no plans to give the X7 the high-performance M treatment - that's being reserved for the upcoming X8 M flagship, which will reportedly be the Bavarian automaker's most powerful production model yet with a hybrid powertrain producing up to 750 horsepower. The refreshed BMW X7 is expected to arrive sometime in 2022.