Compare the2024 BMW X4 MVS 2024 Porsche Cayenne Coupe

The X4 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 X4 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 X4 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 X4 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.

BMW pays for scheduled maintenance on the X4 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 X4 M’s warranty.

As tested in Car and Driver the X4 M Competition is faster than the Cayenne S Coupe 4.0 turbo V8:

For better stopping power the X4 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 X4 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 X4 M stops shorter than the Cayenne Coupe:

The X4 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 X4 M is 6.5 inches shorter than the Cayenne Coupe, making the X4 M easier to handle, maneuver and park in tight spaces.

Pulling a handle automatically lowers the X4 M’s rear seats, to make changing between passengers and cargo easier. The Cayenne Coupe doesn’t offer automatic folding seats.

The X4 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.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the X4 M has standard extendable sun visors. The Cayenne Coupe doesn’t offer extendable visors.