Compare the2025 Audi RS 3VS 2025 Ford Mustang

The RS 3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Mustang doesn’t offer pre-crash pretensioners.

For enhanced safety, the front seat shoulder belts of the Audi RS 3 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 Ford Mustang doesn’t offer height-adjustable seat belts.

The RS 3 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mustang doesn’t offer all-wheel drive.

The RS 3 has standard Parking System Plus to help warn the driver about vehicles, pedestrians or other obstacles behind or in front of their vehicle. The Mustang doesn’t offer a front parking aid.

Both the RS 3 and the Mustang 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, post-collision automatic braking systems, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems and rear cross-path warning.

A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Audi RS 3 is safer than the Mustang Fastback:

	RS 3	Mustang
Overall Evaluation	GOOD	ACCEPTABLE
Restraints	GOOD	ACCEPTABLE
Head Neck Evaluation	GOOD	GOOD
Head injury index	71	147
Peak Head Forces	0 G’s	0 G’s
Steering Column Movement Rearward	0 cm	5 cm
Chest Evaluation	GOOD	GOOD
Hip & Thigh Evaluation	GOOD	GOOD
Femur Force R/L	.9/.1 kN	2.8/1.4 kN
Hip & Thigh Injury Risk R/L	0%/0%	0%/0%
Lower Leg Evaluation	GOOD	GOOD
Tibia index R/L	.53/.48	.74/.66
Tibia forces R/L	2.4/.9 kN	3.3/2.5 kN

The RS 3 comes with a full 4-year/50,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The Mustang’s 3-year/36,000-mile basic warranty expires 1 year or 14,000 miles sooner.

The RS 3’s corrosion warranty is 7 years longer than the Mustang’s (12 vs. 5 years).

From surveys of all its subscribers, Consumer Reports’ March 2025 Auto Issue reports that Audi vehicles are more reliable than Ford vehicles. Consumer Reports ranks Audi 6 places higher in reliability than Ford.

The RS 3’s 2.5 turbo 5-cylinder produces 79 more horsepower (394 vs. 315) and 19 lbs.-ft. more torque (369 vs. 350) than the Mustang EcoBoost’s standard 2.3 turbo 4-cylinder.

As tested in Car and Driver the Audi RS 3 is faster than the Mustang EcoBoost 2.3 turbo 4-cylinder (automatics tested):

	RS 3	Mustang
Zero to 60 MPH	3.3 sec	4.5 sec
Quarter Mile	11.8 sec	13.2 sec
Speed in 1/4 Mile	117 MPH	103 MPH

The RS 3 has a standard locking fuel door which locks and unlocks with the power locks. The fuel filler door is not lockable on the Mustang. A locking fuel door helps prevent fuel theft and vandalism, such as sugar in the tank.

The RS 3 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 Mustang doesn’t offer an SMG.

For better stopping power the RS 3’s standard front brake rotors are larger than those on the Mustang:

	RS 3	Mustang
Front Rotors	14.8 inches	12.6 inches

The RS 3 offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The Mustang doesn’t offer ceramic brake rotors.

For better traction, the RS 3 has larger tires than the Mustang (F:265/30R19 & R:245/35R19 vs. 235/50R18).

The RS 3’s 265/30R19 front and 245/35R19 rear tires provide better handling because they have a lower 30 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the Mustang’s standard 50 series tires.

For better ride, handling and brake cooling the RS 3 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Mustang.

The RS 3 is 10.9 inches shorter than the Mustang, making the RS 3 easier to handle, maneuver and park in tight spaces. The RS 3 is 11.2 inches shorter than the Mustang Dark Horse.

The RS 3 has standard seating for 5 passengers; the Mustang can only carry 4.

The RS 3 has 4.2 cubic feet more passenger volume than the Mustang Fastback (87 vs. 82.8).

The RS 3 has 1.8 inches more rear headroom, 6.2 inches more rear legroom and .8 inches more rear shoulder room than the Mustang Fastback.

A low lift-over trunk design makes loading and unloading the RS 3 easier. The RS 3’s trunk lift-over height is 26.7 inches, while the Mustang’s liftover is 30.2 inches.

To make loading and unloading groceries and cargo easier when your hands are full, the RS 3’s power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Mustang doesn’t offer a power or hands-free opening trunk.

The RS 3 offers an optional 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 Mustang doesn’t offer a heads-up display.

The RS 3’s standard power windows have a locking feature to keep children in the rear seat from operating them, but the driver can still raise and lower all of them with the lock engaged. Ford does not offer a locking feature on the Mustang’s standard power windows.

The RS 3’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Mustang’s rear power window switches have to be held the entire time to open or close them fully.

If the windows are left open on the RS 3 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 Mustang can only close the windows from inside the vehicle, with the ignition on.

The RS 3 has two rear doors to provide better access for cargo and rear passengers. The Mustang doesn’t offer rear doors.

Heated windshield washer nozzles are standard on the RS 3 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Mustang 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 RS 3 has standard headlight washers to keep headlight output high. The Mustang doesn’t offer headlight washers.

To help drivers avoid possible obstacles, the RS 3 has standard cornering lights to illuminate around corners when the turn signals are activated. The Mustang doesn’t offer cornering lights.

The RS 3’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Ford only offers heated mirrors on the Mustang Premium/Convertible/Dark Horse.

When the RS 3 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 Mustang’s mirror doesn’t automatically adjust for backing.

The RS 3’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Mustang offers an automatic rear view mirror, but its side mirrors don’t dim.

The RS 3 has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable and it can provide a boundary between children. The Mustang doesn’t offer a rear seat center armrest.

For greater rear passenger comfort, the RS 3 has standard rear a/c vents to keep rear occupants more comfortable. The Mustang doesn’t offer rear vents.

The Audi RS 3 has a standard Homelink wireless remote control system for garage door operation and device management, conveniently located on the rear view mirror. Homelink® eliminates the need for separate garage door openers and associated risks of losing, breaking, or having dead batteries. Ford charges extra for Homelink® on the Mustang.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Audi RS 3 has a standard wireless phone charging system (Qi) in the front center console. The Mustang doesn’t offer wireless personal charging.

The RS 3’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 Mustang doesn’t offer an automated parking system.