BMW has offered M40i versions of the latest generation X3 and X4 models, but they pale in comparison to the newly announced, full bore X3 M and X4 M, which both come with 473 horsepower, while Competition versions feature 503 ponies.
That’s all thanks to the brands twin-turbocharged 3.0-liter inline-six cylinder engine, a motor designated S58, as that S code comes with the tell-tale sign of M-meddling and not just a hotter version of the standard engine. The power goes through an eight-speed automatic and is sent to all four wheels through an M xDrive all-wheel-drive system that features a rear-wheel drive mode like the M5.
All this means is that the two crossovers will be able to hit highway speeds in just about 4 seconds (4.1 for standard models, 4.0 for Competition models.) The peak torque output of 442 must have something to do with that impressive figure.
When there’s that much power, there needs to be a lot of cooling to help. Fortunately, the X3 M and X4 M have a motorsport-inspired radiator setup and cooling system. There’s one large, central radiator that’s supported by two smaller ones beside it as well as an oil cooler and transmission cooler. The oil system is specially designed to work even in situations that commonly starve an engine of oil, like heavy braking or lateral movement on the track.
Speaking of track-oriented goodies, the body is well braced for the track with extra reinforcement all over, while buyers will be able to get an optional carbon fiber brace in the fall. The suspension comes standard with M-tuned adjustable adaptive dampers, and the steering is variable with different ratios and adjustable effort. These crossovers feature massive brakes with 15.6-inches rotors up front with 4-piston calipers and 14.6-inch disc in the rear with sliding calipers.
The X3 M and X4 M feature larger front air intakes, as well as M branding on the gills along the side fenders, rear diffusers, rear bumpers, as well as a special roof spoiler. Onlookers will also notice that the front and rear bumpers, side skirts, and wheel arches are also body colored instead of black. Competition models have special touches, specifically gloss black grille surrounds, mirror caps, and side gills. You will also find a black rear spoiler, 21-inch wheels, M Sport exhaust with black chrome exhaust tips, and unique door sill plates and badges on the X4 M models.
The interior of these cars look similar to the non-M models, but with upgraded leather, carbon fiber trim and more M badges. Competition models have extra bolstering.
There’s yet to be any pricing information on these crossovers but they’ll be starting production in April.
a version of this article first appeared on AutoGuide