Compare the2022 Rolls-Royce CullinanVS 2022 Aston Martin DBX

The Cullinan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The DBX doesn’t offer pre-crash pretensioners.

Both the Cullinan and DBX 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 DBX’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.

The Cullinan has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The DBX doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Over 200 people are killed each year when backed over by motor vehicles. The Cullinan has standard Active Park Distance Control that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The DBX doesn’t offer backup collision prevention brakes.

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 DBX doesn’t offer a night vision system.

The Cullinan’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The DBX doesn’t offer a driver alert monitor.

The Cullinan has standard Rolls-Royce Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The DBX doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the Cullinan and the DBX 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, daytime running lights, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

The Rolls-Royce Cullinan weighs 941 to 1129 pounds more than the Aston Martin DBX. 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 DBX’s 3-year/unlimited-mile basic warranty expires 1 year sooner.

Rolls-Royce pays for scheduled maintenance on the Cullinan for 4 years and unlimited miles. Rolls-Royce will pay for oil changes, lubrication and any other required maintenance. Aston Martin doesn’t pay scheduled maintenance for the DBX.

The Cullinan’s standard 6.8 turbo V12 produces 21 more horsepower (563 vs. 542) and 111 lbs.-ft. more torque (627 vs. 516) than the DBX’s 4.0 turbo V8. The Cullinan Black Badge’s standard 6.8 turbo V12 produces 50 more horsepower (592 vs. 542) and 148 lbs.-ft. more torque (664 vs. 516) than the DBX’s 4.0 turbo V8.

The Cullinan has 7.9 gallons more fuel capacity than the DBX (30.4 vs. 22.5 gallons), for longer range between fill-ups.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Cullinan can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The DBX doesn’t offer run-flat tires.

For a smoother ride and more stable handling, the Cullinan’s wheelbase is 9.2 inches longer than on the DBX (129.7 inches vs. 120.5 inches).

The Cullinan has 3 cubic feet more passenger volume than the DBX (112 vs. 109).

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

The Cullinan has a much larger cargo volume with its rear seat up than the DBX with its rear seat up (43.4 vs. 22.5 cubic feet). The Cullinan has a much larger cargo volume with its rear seat folded than the DBX with its rear seat folded (68.2 vs. 54 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 DBX’s rear cargo window doesn’t open.

A Condition-Based Service Display is standard on the Cullinan to save the owner time and money by calculating maintenance intervals based on actual driving conditions. This takes the guesswork out of keeping your vehicle in top condition and helps it last longer. Aston Martin doesn’t offer a maintenance reminder on the DBX.

The Cullinan has a standard heads-up display that projects speed, warning and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The DBX doesn’t offer a heads-up display.

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

To help drivers avoid possible obstacles, the Cullinan has standard cornering lights to illuminate around corners when the turn signals are activated. The DBX doesn’t offer cornering lights. The Cullinan also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

Manual rear side window sunshades are available in the Cullinan to help block heat and glare for the rear passengers. The DBX doesn’t offer rear side window sunshades.

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 DBX.

The Cullinan has standard massaging front and optional massaging rear seats. Massaging seats aren’t available in the DBX.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Genesis GV70 has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the DBX.

The Cullinan’s Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The DBX’s automatic parking system requires operating the brakes and transmission to safely park.

The Rolls-Royce Cullinan outsold the Aston Martin DBX by 11% during the 2021 model year.