The BMW X6 M puts the X5 M's V8 in a sloping coupe body with a lower roofline.
The BMW X6 M is the X5 M's 617 horsepower V8 wrapped in a sloping coupe body that trades cargo room and rear visibility for a lower, more aggressive stance that people on the sidewalk notice first. Renters book it when the shape matters more than the trunk, for a group photo, a content shoot or an arrival where the stance does the work.
The X6 M feels big and stiff, with a suspension that never softens in any mode at any speed and all-wheel drive that keeps the V8 planted through a corner rather than spun away. That firmness suits an arrival or a content shoot more than it suits a long drive out of town.
The BMW X6 M is booked by a renter who wants the lowest looking V8 SUV in the fleet and is not planning to fill the cargo area. It is a strong choice for a group photo, a content shoot, or an arrival where the stance does more work than the practicality. It still seats five and carries the same all wheel drive V8 as the X5 M, so it is not without room, it simply asks a driver to prioritize the look over the last few cubic feet of trunk space. Renters cross shopping the X5 M pick the X6 M for the roofline alone.
BMW's X6 M family runs from two M Performance grades up to the full M car, now sold only in Competition form, all under the same sloping coupe roofline. We run the X6 M Competition.
The BMW X6 M50i makes 523 hp from a twin-turbo 4.4 liter V8 and sits one rung under the full M car. It pairs the coupe roofline with a softer air suspension tune, comfort seats and a quieter exhaust, so it reads as a styling choice more than a performance one. It rides noticeably better than any full M version of the X6. We do not run it.
The BMW X6 M60i replaced the M50i with a newer twin-turbo V8 and a 48 volt mild-hybrid starter-generator, still rated 523 hp but with stronger low-end torque and near-invisible stop-start at lights. It keeps the comfort-first suspension tune of the M Performance grade, and it gives up the same cargo room to the roofline as every other X6. We do not run it.
The BMW X6 M in base form made 591 hp and carried the M-specific suspension, brakes and rear differential that the M Performance grades do not get. It sat between the M60i and the Competition on ride firmness, which made it the most usable version of the full M car. BMW dropped it when this generation was updated, leaving no lower M grade. We do not run it.
The BMW X6 M Competition makes 617 hp and is the version we run. A renter feels a firm ride in every setting, a heavily bolstered seat, and a darker cabin than an X5 M because of the lower roof and smaller rear glass. The roofline costs cargo room and rear visibility, so a renter loading bags should plan for it rather than discover it at the tailgate. The brake pedal has its own Comfort and Sport settings and the steering offers two selectable weights.