2019 BMW X7 vs. 2019 Rolls-Royce Cullinan

Detailed Review, Specifications & Comparison

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Safety

The X7’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Cullinan doesn’t offer pre-crash pretensioners.

The X7 has standard Post-Crash Braking, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Cullinan 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.

Both the X7 and the Cullinan have standard driver and passenger frontal 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, rear cross-path warning, driver alert monitors and available around view monitors.

Warranty

The X7’s corrosion warranty is 8 years longer than the Cullinan’s (12 vs. 4 years).

There are almost 10 times as many BMW dealers as there are Rolls-Royce dealers, which makes it much easier should you ever need service under the X7’s warranty.

Fuel Economy and Range

On the EPA test cycle the X7 gets better fuel mileage than the Cullinan:

MPG

X7

AWD

40i 3.0 Turbo 6 cyl.

20 city/25 hwy

50i 4.4 Turbo V8

15 city/21 hwy

Cullinan

AWD

6.7 Turbo V12

12 city/20 hwy

Regenerative brakes improve the X7’s fuel efficiency by converting inertia back into energy instead of wasting it. The Cullinan doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the X7’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Cullinan doesn’t offer an automatic engine start/stop system.

Transmission

For more complete vehicle control the X7 has a manually controlled automatic, with the available convenience of an automatic transmission and the complete gear control of a manual transmission without the inconvenience of a clutch. A manually controlled automatic allows the driver to eliminate unwanted shifts and maximize engine braking by down shifting while cornering. The Cullinan doesn’t offer a transmission that allows complete gear control.

Tires and Wheels

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the X7 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Cullinan doesn’t offer run-flat tires.

Suspension and Handling

For better maneuverability, the X7’s turning circle is .6 feet tighter than the Cullinan’s (42.8 feet vs. 43.4 feet).

Chassis

The BMW X7 may be more efficient, handle and accelerate better because it weighs about 450 to 700 pounds less than the Rolls-Royce Cullinan.

The X7 is 7 inches shorter than the Cullinan, making the X7 easier to handle, maneuver and park in tight spaces.

For excellent aerodynamics, the X7 has standard flush composite headlights. The Cullinan has recessed headlights that spoil its aerodynamic shape and create extra drag.

The front grille of the X7 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Cullinan doesn’t offer active grille shutters.

Passenger Space

The X7 has standard seating for 7 passengers; the Cullinan can only carry up to 5.

Cargo Capacity

The X7’s cargo area provides more volume than the Cullinan.

X7

Cullinan

Third Seat Folded

48.6 cubic feet

n/a

Third Seat Removed

n/a

43.4 cubic feet

Second Seat Folded

90.4 cubic feet

68.2 cubic feet

The X7’s standard rear seats fold to accommodate long and bulky cargo. The Cullinan w/Executive Rear Seats doesn’t offer folding rear seats.

Ergonomics

The X7 offers a remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Cullinan doesn’t offer a remote starting system.

To keep a safe, consistent following distance, the X7 offers an optional Adaptive Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Cullinan doesn’t offer an adaptive cruise control.

The X7’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Cullinan doesn’t offer an automated parking system.

Recommendations

Consumer Reports® recommends the BMW X7, based on reliability, safety and performance.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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