2019 Audi Q5 vs. 2019 Cadillac XT4

Detailed Review, Specifications & Comparison

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The Q5’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.

Both the Q5 and XT4 have child safety locks to prevent children from opening the rear doors. The Q5 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The XT4’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The Q5 has standard Secondary Collision Brake Assist, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The XT4 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Q5. But it costs extra on the XT4.

Both the Q5 and the XT4 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the Q5 the rating of “Top Pick” for 2017, a rating granted to only 139 vehicles tested by the IIHS. The XT4 has not been tested, yet.


The Q5’s corrosion warranty is 6 years longer than the XT4’s (12 vs. 6 years).


The Audi Q5’s engine uses a cast iron block for durability, while the XT4’s engine uses an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Cadillac vehicles. J.D. Power ranks Audi 13th in reliability, above the industry average. With 45 more problems per 100 vehicles, Cadillac is ranked 27th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Audi 21 places higher in reliability than Cadillac.


The Q5’s 2.0 turbo 4 cyl. produces 11 more horsepower (248 vs. 237) and 15 lbs.-ft. more torque (273 vs. 258) than the XT4’s 2.0 turbo 4 cyl.

As tested in Car and Driver the Audi Q5 is faster than the Cadillac XT4:




Zero to 60 MPH

5.8 sec

7.8 sec

Zero to 100 MPH

16.5 sec

23 sec

5 to 60 MPH Rolling Start

6.5 sec

8.2 sec

Quarter Mile

14.5 sec

16.1 sec

Speed in 1/4 Mile

95 MPH

87 MPH

Fuel Economy and Range

Regenerative brakes improve the Q5’s fuel efficiency by converting inertia back into energy instead of wasting it. The XT4 doesn’t offer a regenerative braking system.

The Q5 has 2.6 gallons more fuel capacity than the XT4 FWD’s standard fuel tank (18.5 vs. 15.9 gallons), for longer range between fill-ups. The Q5 has 2.2 gallons more fuel capacity than the XT4 AWD’s standard fuel tank (18.5 vs. 16.3 gallons).


The Q5 offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The XT4 doesn’t offer an SMG or a conventional manual transmission.

The Q5’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The XT4 doesn’t offer launch control.

Brakes and Stopping

For better stopping power the Q5’s brake rotors are larger than those on the XT4:




Front Rotors

13.3 inches

12.6 inches

Rear Rotors

13 inches

12.4 inches

The Q5 stops much shorter than the XT4:





70 to 0 MPH

161 feet

172 feet

Car and Driver

Tires and Wheels

For better traction, the Q5’s optional tires are larger than the largest tires available on the XT4 (255/45R20 vs. 245/45R20).

Suspension and Handling

For a smoother ride and more stable handling, the Q5’s wheelbase is 1.6 inches longer than on the XT4 (111 inches vs. 109.4 inches).

The Q5 Prestige executes Motor Trend’s “Figure Eight” maneuver quicker than the XT4 Sport AWD (27.2 seconds @ .65 average G’s vs. 27.6 seconds @ .61 average G’s).

For greater off-road capability the Q5 has a 1.4 inches greater minimum ground clearance than the XT4 (8.2 vs. 6.8 inches), allowing the Q5 to travel over rougher terrain without being stopped or damaged.

Passenger Space

The Q5 has 2.3 inches more front headroom, .6 inches more front legroom, .7 inches more front shoulder room, 1 inch more rear headroom and 1.4 inches more rear shoulder room than the XT4.

For enhanced passenger comfort on long trips the Q5’s rear seats recline. The XT4’s rear seats don’t recline.

Cargo Capacity

The Q5 has a much larger cargo volume with its rear seat up than the XT4 with its rear seat up (25.1 vs. 22.5 cubic feet). The Q5 has a much larger cargo volume with its rear seat folded than the XT4 with its rear seat folded (53.1 vs. 48.9 cubic feet).

Pressing a switch automatically lowers the Q5’s rear seats, to make changing between passengers and cargo easier. The XT4 doesn’t offer automatic folding seats.


The Q5’s standard towing capacity is much higher than the XT4’s (4400 vs. 2500 pounds).

Servicing Ease

The engine in the Q5 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.


The Q5’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.

The Q5’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 Luxury’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Heated windshield washer nozzles are standard on the Q5 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The XT4 doesn’t offer heated windshield washer nozzles.


Consumer Reports® recommends the Audi Q5, based on reliability, safety and performance.

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

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