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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 and force limiters to limit the pressure the belts will exert on the passengers. The Cadillac CT5 doesn’t offer pretensioners for the rear seat belts.
Both the A7 and CT5 have child safety locks to prevent children from opening the rear doors. The A7 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 CT5’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 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 CT5 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 CT5.
A passive infrared night vision system optional on the A7 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The CT5 doesn’t offer a night vision system.
Both the A7 and the CT5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger 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, rearview cameras, available blind spot warning systems, around view monitors and rear cross-path warning.
The Audi A7 weighs 672 to 791 pounds more than the Cadillac CT5. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, its standard front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its available headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the A7 the rating of “Top Pick” for 2019, a rating granted to only 106 vehicles tested by the IIHS. The CT5 has not been tested, yet.
The A7’s corrosion warranty is 6 years longer than the CT5’s (12 vs. 6 years).
J.D. Power and Associates rated the A7 third among midsize premium cars in their 2019 Initial Quality Study. The CT5 isn’t in the top three in its category.
J.D. Power and Associates’ 2019 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 8th in reliability, above the industry average. With 42 more problems per 100 vehicles, Cadillac is ranked 23rd.
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 A7’s 3.0 turbo V6 hybrid produces 98 more horsepower (335 vs. 237) and 111 lbs.-ft. more torque (369 vs. 258) than the CT5’s standard 2.0 turbo 4 cyl.
Regenerative brakes improve the A7’s fuel efficiency by converting inertia back into energy instead of wasting it. The CT5 doesn’t offer a regenerative braking system.
The A7 has 1.8 gallons more fuel capacity than the CT5 (19.3 vs. 17.5 gallons), for longer range between fill-ups.
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 CT5 doesn’t offer an SMG or a conventional manual transmission.
The A7’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 CT5 doesn’t offer launch control.
For better stopping power the A7’s standard brake rotors are larger than those on the CT5:
The A7’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the CT5 are solid, not vented.
For better traction, the A7’s optional tires are larger than the largest tires available on the CT5 (255/40R20 vs. 245/45R18).
The A7 Prestige’s optional tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the CT5’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 CT5. The A7 Prestige’s optional 21-inch wheels are larger than the 19-inch wheels optional on the CT5.
The A7 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 CT5; it requires you to depend on its optional 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.
The A7 offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The CT5’s suspension doesn’t offer adjustable shock absorbers.
For better handling and stability, the track (width between the wheels) on the A7 is 2.2 inches wider in the front and .5 inches wider in the rear than on the CT5.
For better maneuverability, the A7’s turning circle is 2.6 feet tighter than the CT5’s (36.4 feet vs. 39 feet). The A7’s turning circle is 4.3 feet tighter than the CT5 AWD’s (36.4 feet vs. 40.7 feet).
The A7 has .5 inches more front shoulder room, .5 inches more rear headroom and .2 inches more rear shoulder room than the CT5.
For enhanced passenger comfort on long trips the A7’s rear seats recline. The CT5’s rear seats don’t recline.
To make loading and unloading groceries and cargo easier, especially for short adults, the A7 has a standard power liftgate, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper, completely leaving your hands free. The CT5 doesn’t offer a power trunk, so its trunk has to be closed manually.
The A7’s standard towing capacity is much higher than the CT5’s (3500 vs. 1000 pounds).
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 Premium Plus/Prestige has standard headlight washers to keep headlight output high. The CT5 doesn’t offer headlight washers.
The CT5 Premium Luxury/Sport’s optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The A7 Premium Plus/Prestige’s 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.
A power rear sunshade is optional in the A7 to help block heat and glare for the rear passengers. The CT5 doesn’t offer a rear sunshade.
The A7 has standard heated front seats. Heated front seats cost extra on the CT5. The A7 also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the CT5.
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