2019 Audi A7 vs. 2019 Cadillac CT6

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Audi A7 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Cadillac CT6 doesn’t offer pretensioners for the rear seat belts.

The A7 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The CT6 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 A7. But it costs extra on the CT6.

Both the A7 and the CT6 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, rearview cameras, available night vision systems, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

Warranty

The A7’s corrosion warranty is 6 years longer than the CT6’s (12 vs. 6 years).

Reliability

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.

Engine

The A7’s 3.0 turbo V6 hybrid produces 70 more horsepower (335 vs. 265) and 74 lbs.-ft. more torque (369 vs. 295) than the CT6’s standard 2.0 turbo 4 cyl. The A7’s 3.0 turbo V6 hybrid produces 84 lbs.-ft. more torque (369 vs. 285) than the CT6’s optional 3.6 DOHC V6.

Fuel Economy and Range

On the EPA test cycle the A7 gets better fuel mileage than the CT6 3.6 V6 AWD (22 city/29 hwy vs. 18 city/27 hwy). The A7 gets better fuel mileage than the CT6 3.0 twin turbo V6 AWD (22 city/29 hwy vs. 18 city/26 hwy).

Regenerative brakes improve the A7’s fuel efficiency by converting inertia back into energy instead of wasting it. The CT6 doesn’t offer a regenerative braking system.

To lower fuel costs and make buying fuel easier, the Audi A7 uses regular unleaded gasoline (premium recommended for maximum performance). The CT6 with the 3.0 turbo V6 engine requires premium, which can cost 20 to 55 cents more per gallon.

Transmission

The A7 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 CT6 doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

For better stopping power the A7’s standard brake rotors are larger than those on the CT6:

 

A7

CT6

Front Rotors

13.3 inches

12.6 inches

Rear Rotors

13 inches

12.4 inches

Tires and Wheels

For better traction, the A7 has larger standard tires than the CT6 (245/45R19 vs. 235/50R18). The A7’s optional tires are larger than the largest tires available on the CT6 (255/40R20 vs. 245/45R19).

The A7’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 CT6’s standard 50 series tires. The A7 Prestige’s optional tires have a lower 35 series profile than the CT6’s optional 40 series tires.

For better ride, handling and brake cooling the A7 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the CT6. The A7 Prestige’s optional 21-inch wheels are larger than the 20-inch wheels optional on the CT6.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the A7 is 1.6 inches wider in the front and .4 inches wider in the rear than on the CT6.

For better maneuverability, the A7’s turning circle is 3.6 feet tighter than the CT6’s (36.4 feet vs. 40 feet).

Chassis

The A7 is 10.2 inches shorter than the CT6, making the A7 easier to handle, maneuver and park in tight spaces.

Cargo Capacity

The A7 has a much larger trunk than the CT6 (24.9 vs. 15.8 cubic feet).

The A7’s standard rear seats fold to accommodate long and bulky cargo. The CT6 doesn’t offer folding rear seats, only a ski pass-through.

A standard locking glovebox keeps your small valuables safer in the A7. The CT6 doesn’t offer locking storage for small valuables.

Ergonomics

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The A7 offers available headlight washers to keep headlight output high. The CT6 doesn’t offer headlight washers.

The CT6 Premium Luxury/Platinum/Sport’s cornering lamps activate a lamp on the front corner when the turn signal is activated. The A7’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.

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

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