Compare the2025 Audi S3VS 2025 Cadillac CT4-V

The S3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The CT4-V doesn’t offer pre-crash pretensioners.

For enhanced safety, the front seat shoulder belts of the Audi S3 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Cadillac CT4-V doesn’t offer height-adjustable seat belts.

The S3 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 CT4-V 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 S3. But it costs extra on the CT4-V.

Both the S3 and CT4-V have rear cross-traffic warning, but the S3 has Automatic Brake Activation (automatically applies the brakes) to better prevent a collision when backing near traffic. The CT4-V’s Rear Cross Traffic Alert doesn’t automatically brake.

Both the S3 and the CT4-V have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras and rear cross-path warning.

The S3’s corrosion warranty is 6 years longer than the CT4-V’s (12 vs. 6 years).

The Audi S3’s engine uses a cast iron block for durability, while the CT4-V’s engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

The S3’s 2.0 turbo 4-cylinder produces 3 more horsepower (328 vs. 325) than the CT4-V’s standard 2.7 turbo 4-cylinder.

On the EPA test cycle the S3 gets better mileage than the CT4-V:

To lower fuel costs and make buying fuel easier, the Audi S3 uses regular unleaded gasoline (premium recommended for maximum performance). The CT4-V requires premium, which can cost on average about 84.9 cents more per gallon.

The S3 has a standard locking fuel door which locks and unlocks with the power locks. The fuel filler door is not lockable on the CT4-V. A locking fuel door helps prevent fuel theft and vandalism, such as sugar in the tank.

The S3 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 CT4-V doesn’t offer an SMG.

For better stopping power the S3’s standard front brake rotors are larger than those on the CT4-V:

For better maneuverability, the S3’s turning circle is .6 feet tighter than the CT4-V’s (36.5 feet vs. 37.1 feet). The S3’s turning circle is 2.3 feet tighter than the CT4-V Blackwing’s (36.5 feet vs. 38.8 feet).

The S3 is 9.8 inches shorter than the CT4-V, making the S3 easier to handle, maneuver and park in tight spaces.

The S3 has .1 inches more rear headroom and 1.8 inches more rear legroom than the CT4-V.

A low lift-over trunk design makes loading and unloading the S3 easier. The S3’s trunk lift-over height is 26.7 inches, while the CT4-V’s liftover is 30 inches.

To make loading and unloading groceries and cargo easier, especially for short adults, the S3 has a standard power trunk, which opens and closes automatically by pressing a button, or optionally by just kicking your foot under the back bumper, completely leaving your hands free. The CT4-V doesn’t offer a power trunk.

The S3 has a 3500 lbs. towing capacity. The CT4-V has no towing capacity.

The S3’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 CT4-V’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the S3 the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the CT4-V can only close the windows from inside the vehicle, with the ignition on.

Heated windshield washer nozzles are standard on the S3 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The CT4-V doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The S3 has standard headlight washers to keep headlight output high. The CT4-V doesn’t offer headlight washers.

Both the Audi S3 and Cadillac CT4-V offer exterior mirrors that can be folded to provide convenience. The S3 offers optional power folding mirrors, which allow for easy, one-touch folding or unfolding at the driver’s discretion. This provides added convenience when maneuvering or parking, as well as when walking past the parked vehicle. In comparison, the CT4-V’s foldable mirrors are manual, requiring the driver to get out and physically fold them once parked and unfold them before getting in.

The S3’s Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The CT4-V doesn’t offer an automated parking system.

Insurance will cost less for the S3 owner. The Complete Car Cost Guide estimates that insurance for the S3 will cost $1260 less than the CT4-V over a five-year period.

The S3 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the S3 will retain 53.69% to 55.79% of its original price after five years, while the CT4-V only retains 50.44% to 50.46%.

The Audi A3/S3/RS 3 outsold the Cadillac CT4 by 49% during 2023.