Compare the2026 Rolls-Royce CullinanVS 2026 BMW X6

For enhanced safety, the front and rear seat shoulder belts of the Rolls-Royce Cullinan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW X6 doesn’t offer pretensioners for its rear seat belts.

Both the Cullinan and X6 have child safety locks to prevent children from opening the rear doors. The Cullinan has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The X6’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

A passive infrared night vision system optional on the Cullinan helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The X6 doesn’t offer a night vision system.

Both the Cullinan and the X6 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and driver alert monitors.

The Rolls-Royce Cullinan weighs 873 to 1171 pounds more than the BMW X6. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

The Cullinan comes with a full 4-year/unlimited-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The X6’s 4-year/50,000-mile basic warranty expires sooner.

Rolls-Royce pays for scheduled maintenance on the Cullinan for 1 year and unlimited miles longer than BMW pays for maintenance for the X6 (4/unlimited vs. 3/36,000).

The Cullinan’s standard 6.8 turbo V12 produces 188 more horsepower (563 vs. 375) and 229 lbs.-ft. more torque (627 vs. 398) than the X6 xDrive40i’s standard 3.0 turbo 6-cylinder hybrid. The Cullinan’s 6.8 turbo V12 produces 40 more horsepower (563 vs. 523) and 74 lbs.-ft. more torque (627 vs. 553) than the X6 M60i xDrive’s standard 4.4 turbo V8 hybrid. The Cullinan Black Badge’s standard 6.8 turbo V12 produces 68 more horsepower (591 vs. 523) and 111 lbs.-ft. more torque (664 vs. 553) than the X6 M60i xDrive’s standard 4.4 turbo V8 hybrid.

The Cullinan has 1.9 gallons more fuel capacity than the X6 (23.8 vs. 21.9 gallons), for longer range between fill-ups.

For better stopping power the Cullinan’s brake rotors are larger than those on the X6:

For better traction and acceleration, the Cullinan has larger standard rear tires than the X6 (285/40R22 vs. 275/45R20).

The Cullinan’s standard 285/40R22 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the X6’s standard 45 series tires.

For better ride, handling and brake cooling the Cullinan has standard 22-inch wheels. Smaller 20-inch wheels are standard on the X6. The Cullinan’s optional 23-inch wheels are larger than the 22-inch wheels optional on the X6.

The front and rear suspension of the Cullinan uses air springs for a smoother, controlled ride than the X6, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

For a smoother ride and more stable handling, the Cullinan’s wheelbase is 12.6 inches longer than on the X6 (129.7 inches vs. 117.1 inches).

The Cullinan has 2.6 inches more front headroom, 2.9 inches more rear headroom and 7.2 inches more rear legroom than the X6.

For enhanced passenger comfort on long trips the Cullinan’s available rear seats recline. The X6’s rear seats don’t recline.

Flexibility is maximized at the game, campground or a drive-in theatre in the Cullinan when its optional tailgating rear seats are deployed, allowing people to sit facing out of the tailgate. (Do not use while vehicle is in motion.) The X6 doesn’t offer tailgating seats.

The Cullinan has a larger cargo volume with its rear seat folded than the X6 with its rear seat folded (68.2 vs. 59.6 cubic feet).

The Cullinan’s rear cargo window opens separately from the rest of the tailgate door to allow quicker loading of small packages. The X6’s rear cargo window doesn’t open.

The Cullinan’s standard towing capacity is much higher than the X6’s (7300 vs. 5952 pounds).

The Cullinan’s power side reverse swing out doors make it much easier to load and unload kids and cargo. One touch opens the door, before you even get to the sport utility. The X6 doesn’t offer a power rear door.

To improve rear visibility by keeping the rear window clear, the Cullinan has a standard rear wiper. The X6 doesn’t offer a rear wiper.

The Cullinan has standard front air conditioned seats and offers them optionally in the rear. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The X6 doesn’t offer air-conditioned seats in the rear.

The Cullinan has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel costs extra on the X6.

The Cullinan has standard massaging front seats. Massaging front seats cost extra on the X6. The Cullinan also offers optional massaging rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging rear seats aren’t available in the X6.

According to iSeeCars.com the 2026 Rolls-Royce Cullinan retains 55.58% of its original value after 5 years, significantly more than the 44.66% resale value of the 2026 BMW X6 after five years, which can save the Rolls-Royce’s owner.