How much is your car worth?
Get the best value for your car from an Asbury dealership.
Both the Grand Cherokee SRT and the Cullinan have standard driver and passenger frontal airbags, front side-impact airbags, driver 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, rearview cameras and rear cross-path warning.
Jeep’s powertrain warranty covers the Grand Cherokee SRT 1 year longer than Rolls-Royce covers the Cullinan. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the Cullinan ends after only 4 years.
The Grand Cherokee SRT’s corrosion warranty is 1 year longer than the Cullinan’s (5 vs. 4 years).
There are almost 65 times as many Jeep dealers as there are Rolls-Royce dealers, which makes it much easier should you ever need service under the Grand Cherokee SRT’s warranty.
The Jeep Grand Cherokee SRT’s engine uses a cast iron block for durability, while the Cullinan’s engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.
An engine control system that can shut down some of the engine’s cylinders helps improve the Grand Cherokee SRT’s fuel efficiency. The Cullinan doesn’t offer a system that can shut down part of the engine.
The Grand Cherokee SRT has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Cullinan doesn’t offer a cap-less fueling system.
For more complete vehicle control the Grand Cherokee SRT 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.
The Grand Cherokee SRT’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The Cullinan doesn’t offer launch control.
For better traction, the Grand Cherokee SRT has larger tires than the Cullinan (295/45R20 vs. 255/50R21).
The Grand Cherokee SRT’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Cullinan’s standard 50 series tires.
The Grand Cherokee SRT offers an optional full size spare tire so a flat doesn’t interrupt your trip. A full size spare isn’t available on the Cullinan; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed.
For better maneuverability, the Grand Cherokee SRT’s turning circle is 5.4 feet tighter than the Cullinan’s (38 feet vs. 43.4 feet).
The Jeep Grand Cherokee SRT may be more efficient, handle and accelerate better because it weighs about 850 pounds less than the Rolls-Royce Cullinan.
The Grand Cherokee SRT is 1 foot, 8.5 inches shorter than the Cullinan, making the Grand Cherokee SRT easier to handle, maneuver and park in tight spaces.
For excellent aerodynamics, the Grand Cherokee SRT has standard flush composite headlights. The Cullinan has recessed headlights that spoil its aerodynamic shape and create extra drag.
The Grand Cherokee SRT uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Cullinan doesn’t offer active noise cancellation.
The Grand Cherokee SRT’s standard rear seats fold to accommodate long and bulky cargo. The Cullinan w/Executive Rear Seats doesn’t offer folding rear seats.
The Grand Cherokee SRT’s liftgate lifts up in one piece, completely out of the way of loading and unloading, while sheltering the cargo loading area. The Cullinan’s tailgate’s top part raises up, but the bottom part lowers, getting in the way of loading and making an uneven surface for sliding cargo.
The Grand Cherokee SRT has a standard 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.
The Grand Cherokee SRT’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The Cullinan does not have an oil pressure gauge.
To improve rear visibility by keeping the rear window clear, the Grand Cherokee SRT has a standard rear fixed intermittent wiper with a full on position. The rear wiper standard on the Cullinan only has an intermittent setting, so in a hard rain visibility isn’t as good.
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Grand Cherokee SRT has standard headlight washers to keep headlight output high. The Cullinan doesn’t offer headlight washers.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Grand Cherokee SRT has standard extendable sun visors. The Cullinan doesn’t offer extendable visors.
The Grand Cherokee SRT has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The Cullinan doesn’t offer a house-current electrical outlet.
Consumer Reports® recommends the Jeep Grand Cherokee SRT, based on reliability, safety and performance.
© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.
Get the best value for your car from an Asbury dealership.