Certified Benz & Beemer Compares 2017 Ford Mustang VS 2017 Audi S5 Near Scottsdale, AZ

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2017 Ford Mustang

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2017 Audi S5

Safety Comparison

The Mustang Premium offers an optional collision warning system, which detects an impending crash through forward mounted sensors and flashes a bright light and sounds a loud, distinctive tone to warn the driver to brake or maneuver immediately to avoid a collision. The S5 doesn't offer a collision warning system.

To help make backing safer, the Mustang Premium’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The S5 doesn’t offer a cross-path warning system.

The Mustang has standard 911 Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions or send emergency personnel to the scene if any airbags deploy. The S5 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the Mustang and the S5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, available blind spot warning systems and rear parking sensors.

Warranty Comparison

Ford’s powertrain warranty covers the Mustang 1 year and 10,000 miles longer than Audi covers the S5. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the S5 ends after only 4 years or 50,000 miles.

There are almost 15 times as many Ford dealers as there are Audi dealers, which makes it much easier should you ever need service under the Mustang’s warranty.

Reliability Comparison

The Mustang has a standard “limp home system” to keep drivers from being stranded if most or all of the engine’s coolant is lost. The engine will run on only half of its cylinders at a time, reduce its power and light a warning lamp on the dashboard so the driver can get to a service station for repairs. The S5 doesn’t offer a lost coolant limp home mode, so a coolant leak could strand you or seriously damage the car’s engine.

J.D. Power and Associates’ 2016 Initial Quality Study of new car owners surveyed provide the statistics that show that Ford vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Ford 11th in initial quality, above the industry average. With 8 more problems per 100 vehicles, Audi is ranked 14th, below the industry average.

Engine Comparison

The Mustang GT’s standard 5.0 DOHC V8 produces 102 more horsepower (435 vs. 333) and 75 lbs.-ft. more torque (400 vs. 325) than the S5’s 3.0 supercharged V6.

As tested in Car and Driver the Mustang GT 5.0 DOHC V8 is faster than the Audi S5 (manual transmissions tested):




Zero to 60 MPH

4.4 sec

4.6 sec

Zero to 100 MPH

10.5 sec

11.5 sec

Quarter Mile

13 sec

13.2 sec

Speed in 1/4 Mile

112 MPH

107 MPH

Top Speed

164 MPH

155 MPH

Fuel Economy and Range Comparison

To lower fuel costs and make buying fuel easier, the Ford Mustang uses regular unleaded gasoline (premium recommended on Mustang ECOBoost for maximum performance). The S5 requires premium, which can cost 20 to 55 cents more per gallon.

The Mustang has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The S5 doesn’t offer a cap-less fueling system.

Brakes and Stopping Comparison

For better stopping power the Mustang GT’s front brake rotors are larger than those on the S5:


Mustang GT


Front Rotors

15 inches

13.6 inches

The Mustang stops much shorter than the S5:





80 to 0 MPH

201 feet

204 feet

Road and Track

70 to 0 MPH

149 feet

167 feet

Car and Driver

60 to 0 MPH

102 feet

105 feet

Motor Trend

Suspension and Handling Comparison

The Mustang’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The S5 doesn’t offer drift compensation steering.

For better handling and stability, the track (width between the wheels) on the Mustang is 3.1 inches wider in the rear than on the S5.

The Mustang EcoBoost Fastback handles at .98 G’s, while the S5 Coupe pulls only .88 G’s of cornering force in a Car and Driver skidpad test.

The Mustang EcoBoost Fastback executes Motor Trend’s “Figure Eight” maneuver 1.4 seconds quicker than the S5 Coupe (24.2 seconds @ .79 average G’s vs. 25.6 seconds @ .71 average G’s).

For better maneuverability, the Mustang w/17” wheels’ turning circle is .9 feet tighter than the S5’s (36.5 feet vs. 37.4 feet).

Chassis Comparison

The Ford Mustang may be more efficient, handle and accelerate better because it weighs about 350 to 400 pounds less than the Audi S5.

The Mustang ECOBoost uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The S5 doesn’t offer active noise cancellation.

Passenger Space Comparison

The Mustang Fastback has .5 cubic feet more passenger volume than the S5 Coupe (84.5 vs. 84).

The Mustang Fastback has .1 inches more front headroom, 3.2 inches more front legroom and 2 inches more front shoulder room than the S5 Coupe.

The Mustang Convertible has 3.2 inches more front legroom and 2 inches more front shoulder room than the S5 Cabriolet.

Cargo Capacity Comparison

The Mustang Fastback has a much larger trunk than the S5 Coupe (13.5 vs. 12.2 cubic feet).

The Mustang Convertible has a much larger trunk with its top down than the S5 Cabriolet (11.4 vs. 10.2 cubic feet).

Ergonomics Comparison

The Mustang Auto has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The S5 doesn’t offer a remote starting system.

The Mustang Premium’s optional easy entry system glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The S5 doesn’t offer an easy entry system.

The Mustang’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The S5 does not have an oil pressure gauge.

On a hot day the Mustang’s driver can lower all the windows from a distance using the keyless remote. The driver of the S5 can’t use the remote to operate the windows.

Intelligent Access standard on the Mustang allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Audi S5’s Audi Advanced Key doesn’t unlock the trunk.

Standard air conditioned seats in the Mustang Premium keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The S5 doesn’t offer air conditioned seats.

Standard SYNC AppLink for the Mustang allows the driver and passengers access to select programs on their smartphones, including reading text messages aloud, playing internet radio stations, searching the internet, following twitter accounts and other connected activities without taking their eyes off the road or their hands from the wheel. The S5 doesn’t offer factory integrated smartphone program access.

Economic Advantages Comparison

Insurance will cost less for the Mustang owner. The Complete Car Cost Guide estimates that insurance for the Mustang will cost $1180 to $10010 less than the S5 over a five-year period.

The Mustang will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Mustang will retain 47.07% to 58.17% of its original price after five years, while the S5 only retains 43.82% to 47.82%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Ford Mustang will be $22488 to $32740 less than for the Audi S5.

Recommendations Comparison

IntelliChoice recognized the Ford Mustang as a “Best Value of the Year” for the 2015 model year.

The Mustang was chosen as one of Car and Driver’s “Top Ten” for 6 of the last 12 years. The S5 has never been a Car and Driver “Top Ten” pick.

The Mustang was chosen as one of Automobile Magazine’s “All Stars” three times - most recently in 2015. The S5 has never been an “All Star.”

The Ford Mustang outsold the Audi A5/A5/S5/RS 5 by almost twelve to one during the 2016 model year.

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