There have been several sightings of the new BMW M4 preparing for its debut in the last few months, but BMW isn't neglecting its larger M5 sibling. We've known for a while now that BMW is planning to give the 5 Series a refresh, including the M5.

Since our last sighting, the updated BMW M5 prototype has dropped some camouflage, giving us our best look yet at the performance sedan. Intriguingly, the BMW M5 has been spied being tested in the snow alongside what appears to be the BMW i4 electric sedan that was spied last month.

We get a much clearer look at the redesigned grille, and we're happy to report it will be much smaller than the new 4 Series' massive nostrils. Elsewhere, BMW has updated the M5 with slimmer headlights and new LED daytime running lights as well as a new front bumper. At the back, the taillights have been updated with new graphics and the camouflage suggests the rear bumper will also get some minor modifications.

Engine options for the refreshed BMW M5 haven't been confirmed, but we're expecting the current model's powertrain lineup to carry over, possibly with increased performance and reduced emissions.

The current BMW M5 is powered by a 4.4-liter twin-turbocharged V8 engine that sends 600 horsepower and 553 lb-ft of torque to all four wheels through an eight-speed automatic transmission. Power increases to 625 horsepower in the M5 Competition. Both models will do the 0-62 mph sprint in 3.3 seconds and top out at 155 mph, or 190 mph with the optional M Driver's Package.

Inside, the BMW M5 is equipped with a 12.3-inch digital cluster and a 10.25-inch infotainment touchscreen, but spy shots of the 5 Series facelift have shown the cabin will be updated with a larger infotainment screen and updated software. Expect the standard 2021 BMW 5 Series to break cover first, so the BMW M5 facelift will most likely be unveiled later this year and go on sale as a 2021 model year.