Compare the2024 Mercedes GLCVS 2024 Cadillac XT4

For enhanced safety, the front and rear seat shoulder belts of the Mercedes GLC have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Cadillac XT4 doesn’t offer pretensioners for its rear seat belts.

The GLC’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The XT4 doesn’t offer pre-crash pretensioners.

The GLC has standard NECK-PRO front head restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the NECK-PRO front head restraints system moves the headrests forward to prevent neck and spine injuries. The XT4 doesn’t offer a whiplash protection system.

Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The GLC offers optional Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The XT4 doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.

The GLC’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 XT4 doesn’t offer a driver alert monitor.

Both the GLC and the XT4 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive, lane departure warning systems and around view monitors.

The Mercedes GLC achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2024 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The XT4 has not yet been fully evaluated by the IIHS for 2024.

The GLC’s 2.0 turbo 4-cylinder hybrid produces 20 more horsepower (255 vs. 235) and 37 lbs.-ft. more torque (295 vs. 258) than the XT4’s 2.0 turbo 4-cylinder.

As tested in Car and Driver the Mercedes GLC is faster than the Cadillac XT4:

On the EPA test cycle the GLC gets better mileage than the XT4:

Regenerative brakes improve the GLC’s fuel efficiency by converting inertia back into energy instead of wasting it. The XT4 doesn’t offer a regenerative braking system.

The GLC has 1.5 gallons more fuel capacity than the XT4 FWD’s standard fuel tank (17.4 vs. 15.9 gallons), for longer range between fill-ups. The GLC has 1.1 gallons more fuel capacity than the XT4 AWD’s standard fuel tank (17.4 vs. 16.3 gallons).

The GLC has a standard locking fuel door which locks and unlocks with the power locks. The fuel filler door is not lockable on the XT4. A locking fuel door helps prevent fuel theft and vandalism, such as sugar in the tank.

For better stopping power the GLC’s brake rotors are larger than those on the XT4:

The GLC stops much shorter than the XT4:

For better traction, the GLC’s optional tires are larger than the largest tires available on the XT4 (F:255/45R20 & R:285/40R20 vs. 245/45R20).

The GLC’s optional 285/40R20 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the XT4’s optional 45 series tires.

The GLC’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The XT4 doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the GLC’s wheelbase is 3.7 inches longer than on the XT4 (113.1 inches vs. 109.4 inches).

For better handling and stability, the track (width between the wheels) on the GLC is .9 inches wider in the front and 1.5 inches wider in the rear than on the XT4.

The GLC 300 4MATIC handles at .88 G’s, while the XT4 Sport AWD pulls only .86 G’s of cornering force in a Car and Driver skidpad test.

The GLC has 1.9 inches more front headroom, 4.5 inches more front hip room, .3 inches more front shoulder room, 1.4 inches more rear headroom, 8.5 inches more rear hip room and 1.5 inches more rear shoulder room than the XT4.

For enhanced passenger comfort on long trips the GLC’s rear seats recline. The XT4’s rear seats don’t recline.

The GLC has a larger cargo volume with its rear seat folded than the XT4 with its rear seat folded (56.3 vs. 48.9 cubic feet).

The GLC’s cargo area is larger than the XT4’s in almost every dimension:

A control in the cargo area automatically lowers the GLC’s rear seats, to make changing between passengers and cargo easier. The XT4 doesn’t offer automatic folding seats.

The GLC’s standard towing capacity is much higher than the XT4’s (5291 vs. 2000 pounds).

The engine in the GLC is mounted longitudinally (North-South), instead of sideways, as in the XT4. This makes it easier to service and maintain, because the accessory belts are in front.

Unlike the driver-only memory system in the XT4 Premium Luxury/Sport, the GLC has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The GLC’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The XT4’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the GLC the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the XT4 can only close the windows from inside the vehicle, with the ignition on.

The GLC’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The XT4’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

The XT4 (except Luxury)’s optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The GLC’s optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.

Manual rear side window sunshades are available in the GLC to help block heat and glare for the rear passengers. The XT4 doesn’t offer rear side window sunshades.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes GLC has a standard wireless phone charging system (Qi) in the center console. Only the XT4 Premium Luxury/Sport offers wireless charging and it costs extra.

The GLC offers an optional 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 XT4 doesn’t offer a house-current electrical outlet.

Motor Trend selected the GLC as their 2017 Sport Utility of the Year. The XT4 has never been chosen.

The Mercedes GLC outsold the Cadillac XT4 by 77% during 2023.