Compare the2025 Mercedes GLSVS 2025 Audi Q7

The Mercedes GLS has a standard driver’s side knee airbag mounted low on the dashboard. The knee airbag helps prevent the driver from sliding under the seatbelts or the main frontal airbag; this keeps the driver better positioned during a collision for maximum protection. A knee airbag also helps keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Q7 doesn’t offer knee airbags.

Both the GLS and the Q7 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, 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, rear cross-path warning and driver alert monitors.

The Mercedes GLS weighs 408 to 1271 pounds more than the Audi Q7. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

There are over 25 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the GLS’ warranty.

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. With 36 fewer problems per 100 vehicles, JD Power ranks Mercedes higher than Audi.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Audi With 57 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Mercedes higher than Audi.

The GLS has more powerful engines than the Q7:

As tested in Consumer Reports the GLS 450 3.0 turbo 6-cylinder hybrid is faster than the Q7 55 TFSI 3.0 turbo V6 hybrid:

On the EPA test cycle the GLS 450 gets better fuel mileage than the Q7 55 TFSI (19 city/24 hwy vs. 18 city/23 hwy).

The GLS has 1.3 gallons more fuel capacity than the Q7 (23.8 vs. 22.5 gallons), for longer range between fill-ups.

A nine-speed automatic is standard on the Mercedes GLS, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Q7.

For better stopping power the GLS’ brake rotors are larger than those on the Q7:

The GLS stops much shorter than the Q7:

For better traction, the GLS has larger standard tires than the Q7 (F:275/45R21 & R:315/40R21 vs. 255/55R19).

The GLS’ standard 275/45R21 front and 315/40R21 rear tires provide better handling because they have a lower 45 series front and 40 series rear profile (height to width ratio) that provides a stiffer sidewall than the Q7’s standard 55 series tires. The GLS’ optional 325/35R23 rear tires have a lower 35 series profile than the Q7’s optional 40 series tires.

For better ride, handling and brake cooling the GLS has standard 21-inch wheels. Smaller 19-inch wheels are standard on the Q7. The GLS’ optional 23-inch wheels are larger than the 21-inch wheels optional on the Q7.

The GLS has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the Q7; 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. Some tire options on the Q7 don’t have a run-flat feature, either.

The front and rear suspension of the GLS uses air springs for a smoother, controlled ride than the Q7, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The GLS offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Audi doesn’t offer an active suspension on the Q7.

The GLS has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The GLS’ height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The Q7 doesn’t offer a load leveling suspension.

The GLS’ 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 Q7 doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the GLS’ wheelbase is 5.5 inches longer than on the Q7 (123.4 inches vs. 117.9 inches).

The GLS 450 handles at .92 G’s, while the Q7 Prestige pulls only .85 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Maybach GLS 600’s turning circle is 5.3 feet tighter than the Q7’s (35.7 feet vs. 41 feet).

For greater off-road capability the GLS has a 1.8 inches greater minimum ground clearance than the Q7 (10.1 vs. 8.3 inches), allowing the GLS to travel over rougher terrain without being stopped or damaged. The GLS Off-Road Package’s minimum ground clearance is 1.6 inches higher than on the Q7 w/Air Suspension (11.3 vs. 9.7 inches).

The GLS’ cargo area provides more volume than the Q7.

The GLS has a standard third row seat which folds flat into the floor. This completely clears a very large cargo area quickly. The Q7 doesn’t offer seats that fold into the floor.

Pressing a switch automatically lowers or raises the GLS’ second and third row seats, to make changing between cargo and passengers easier. The Q7 doesn’t offer automatic folding second row seats.

The GLS’ standard towing capacity is much higher than the Q7’s (7700 vs. 4409 pounds).

Heated windshield washer fluid is optional on the GLS to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The Q7 doesn’t offer heated windshield washer fluid. Its standard heated washer nozzles will defrost the washer fluid but not the windshield.

The Q7’s cornering lamps activate a lamp on the front corner when the turn signal is activated. The GLS’ standard 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.

The GLS has standard heated front and optional heated second and third row seats, which keep the driver and passengers extremely comfortable in the winter. Audi doesn’t offer heated seats in the third row of the Q7.

The GLS has standard front air conditioned seats and offers them optionally in the second row. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The Q7 doesn’t offer air-conditioned seats for the second row.

The GLS offers an optional center folding armrest for the third row rear passengers. A center armrest helps make rear passengers more comfortable and can provide a barrier between children. The Q7 doesn’t offer a third row rear seat center armrest.

Both the GLS and the Q7 offer available massaging front seats. The GLS also offers optional massaging second row seats in order to maximize comfort and eliminate fatigue on long trips. Massaging second row seats aren’t available in the Q7.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes GLS has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the Q7. The GLS also offers Qi charging in the second row seat. The Q7 doesn’t offer wireless charging in its second row seat.

The GLS 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 Q7 doesn’t offer a house-current electrical outlet.

According to The Car Book by Jack Gillis, the GLS is less expensive to operate than the Q7 because it costs $18 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the GLS than the Q7, including $207 less for a muffler, $344 less for a starter, $197 less for fuel injection, $246 less for front struts and $1061 less for a timing belt/chain.

J.D. Power and Associates rated the GLS third among large premium suvs in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Q7 isn’t in the top three.