2020 Cadillac XT6 vs. 2019 Audi Q8

Detailed Review, Specifications & Comparison

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Safety

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the XT6 are reminded to check the back seat if they opened the rear door before starting out. The Q8 doesn’t offer a back seat reminder.

Over 200 people are killed each year when backed over by motor vehicles. The XT6 offers optional Reverse Automatic Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Q8 doesn’t offer backup collision prevention brakes.

Both the XT6 and the Q8 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available all wheel drive, night vision systems and around view monitors.

Warranty

Cadillac’s powertrain warranty covers the XT6 2 years and 20,000 miles longer than Audi covers the Q8. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Q8 ends after only 4 years or 50,000 miles.

There are almost 3 times as many Cadillac dealers as there are Audi dealers, which makes it much easier should you ever need service under the XT6’s warranty.

Reliability

J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Cadillac vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Cadillac 17th in initial quality. With 6 more problems per 100 vehicles, Audi is ranked 22nd.

Fuel Economy and Range

An engine control system that can shut down half of the engine’s cylinders helps improve the XT6’s fuel efficiency. The Q8 doesn’t offer a system that can shut down part of the engine.

To lower fuel costs and make buying fuel easier, the Cadillac XT6 uses regular unleaded gasoline. The Q8 requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

The XT6 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 Q8 doesn’t offer a cap-less fueling system.

Transmission

A nine-speed automatic is standard on the Cadillac XT6, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Q8.

Tires and Wheels

The Cadillac XT6’s wheels have 6 lugs for longer wheel bearing life, less chance of rotor warping and greater strength. The Audi Q8 only has 5 wheel lugs per wheel.

Suspension and Handling

For better maneuverability, the XT6’s turning circle is 4.4 feet tighter than the Q8’s (39.1 feet vs. 43.5 feet).

For greater off-road capability the XT6 has a greater minimum ground clearance than the Q8 (6.65 vs. 5.8 inches), allowing the XT6 to travel over rougher terrain without being stopped or damaged.

Chassis

The Cadillac XT6 may be more efficient, handle and accelerate better because it weighs about 300 to 550 pounds less than the Audi Q8.

The XT6 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Q8 doesn’t offer active noise cancellation.

Passenger Space

The XT6 has standard seating for 7 passengers; the Q8 can only carry 5.

The XT6 has 1.6 inches more front headroom and 1 inch more rear headroom than the Q8.

Cargo Capacity

The XT6’s cargo area provides more volume than the Q8.

XT6

Q8

Third Seat Folded

43.1 cubic feet

n/a

Third Seat Removed

n/a

28.6 cubic feet

Second Seat Folded

78.7 cubic feet

67.5 cubic feet

Pressing a switch automatically lowers the XT6’s second and third row seats, to make changing between passengers and cargo easier. The Q8 doesn’t offer automatic folding second row seats.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Cadillac service is better than Audi. J.D. Power ranks Cadillac third in service department satisfaction. With a 23% lower rating, Audi is ranked 8th.

Ergonomics

To improve rear visibility by keeping the rear window clear, the XT6 has a standard rear fixed intermittent wiper with a full on position. The rear wiper standard on the Q8 only has an intermittent setting, so in a hard rain visibility isn’t as good.

To help drivers avoid possible obstacles, the XT6 has standard cornering lights to illuminate around corners when the turn signals are activated. The Q8 doesn’t offer cornering lights.

The XT6 has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel costs extra on the Q8.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Cadillac XT6 has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the Q8.

The XT6’s optional Automatic Park Assist can parallel park or back into a parking spot by itself, starting and stopping automatically, with the driver only responsible for switching from reverse to drive. The Q8 doesn’t offer an automated parking system.

Model Availability

The XT6 is available in both front-wheel drive and four-wheel drive configurations. The Q8 doesn’t offer a two-wheel drive configuration.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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