Compare the2024 BMW X3 MVS 2024 Porsche Cayenne Coupe

The X3 M’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Cayenne Coupe doesn’t offer pre-crash pretensioners.

The X3 M has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Cayenne Coupe doesn’t offer a whiplash protection system.

The X3 M’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 Cayenne Coupe doesn’t offer a driver alert monitor.

Both the X3 M and the Cayenne Coupe 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 available around view monitors.

The BMW X3 M has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2024 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The Cayenne Coupe has not yet been evaluated by the IIHS for 2024.

BMW pays for scheduled maintenance on the X3 M for 2 years and 26000 miles longer than Porsche pays for maintenance for the Cayenne Coupe (3/36,000 vs. 1/10,000).

There are over 76 percent more BMW dealers than there are Porsche dealers, which makes it much easier should you ever need service under the X3 M’s warranty.

For better stopping power the X3 M’s standard brake rotors are larger than those on the Cayenne Coupe:

In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The X3 M has a standard Brake Assistant to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Cayenne Coupe doesn’t offer a brake assist feature.

The X3 M’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Cayenne Coupe’s standard 55 series front tires.

The X3 M is 8 inches shorter than the Cayenne Coupe, making the X3 M easier to handle, maneuver and park in tight spaces.

The X3 M has 2.5 inches more front headroom and .2 inches more rear headroom than the Cayenne Coupe.

The X3 M has a much larger cargo volume with its rear seat up than the Cayenne Coupe with its rear seat up (28.7 vs. 20.9 cubic feet). The X3 M has a much larger cargo volume with its rear seat folded than the Cayenne Coupe with its rear seat folded (62.7 vs. 53 cubic feet).

Pulling a handle automatically lowers the X3 M’s rear seats, to make changing between passengers and cargo easier. The Cayenne Coupe doesn’t offer automatic folding seats.

The X3 M 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 Cayenne Coupe doesn’t offer a remote starting system.

The X3 M’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Cayenne Coupe’s cruise control switches are unlit, making them difficult to find at night and operate safely.

To improve rear visibility by keeping the rear window clear, the X3 M has a standard rear wiper. The Cayenne Coupe doesn’t offer a rear wiper.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the X3 M has standard extendable sun visors. The Cayenne Coupe doesn’t offer extendable visors.

Insurance will cost less for the X3 M owner. The Complete Car Cost Guide estimates that insurance for the X3 M will cost $5115 to $12230 less than the Cayenne Coupe over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the BMW X3 M will be $5923 to $97794 less than for the Porsche Cayenne Coupe.

The BMW X3 outsold the Porsche Cayenne by over three to one during 2023.