Compare the2025 Audi S3VS 2025 Alfa Romeo Giulia

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 Giulia 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 Alfa Romeo Giulia doesn’t offer height-adjustable seat belts.

Both the S3 and Giulia have child safety locks to prevent children from opening the rear doors. The S3 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 Giulia’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 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 Giulia 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 Giulia.

Both the S3 and Giulia 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 Giulia’s Rear Cross-Path Detection doesn’t automatically brake.

Both the S3 and the Giulia 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 7 years longer than the Giulia’s (12 vs. 5 years).

There are over 2 times as many Audi dealers as there are Alfa Romeo dealers, which makes it much easier should you ever need service under the S3’s warranty.

The Audi S3’s engine uses a cast iron block for durability, while the Giulia’s engine uses 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 48 more horsepower (328 vs. 280) than the Giulia’s 2.0 turbo 4-cylinder.

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 Giulia doesn’t offer an SMG or a conventional manual transmission.

For better stopping power the S3’s front brake rotors are larger than those on the Giulia:

The S3’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Giulia are solid, not vented.

For better traction, the S3’s optional tires are larger than the largest tires available on the Giulia (235/35R19 vs. 225/40R19).

The S3’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Giulia’s standard 45 series tires. The S3’s optional tires have a lower 35 series profile than the Giulia’s optional 40 series front tires.

The S3 is 5.4 inches shorter than the Giulia, making the S3 easier to handle, maneuver and park in tight spaces.

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 Giulia doesn’t offer a power trunk.

The S3 has a 3500 lbs. towing capacity. The Giulia has no towing capacity.

The S3 Prestige has a standard heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Giulia doesn’t offer a heads-up display.

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 Giulia can only operate the windows from inside the vehicle, with the ignition on.

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 Giulia doesn’t offer headlight washers.

When the S3 with available tilt-down mirrors is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Giulia’s mirror doesn’t automatically adjust for backing.

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 Giulia 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 $1940 less than the Giulia 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 Giulia only retains 48.07% to 50.12%.

The Audi A3/S3/RS 3 outsold the Alfa Romeo Giulia by almost four to one during 2023.