2019 Alfa Romeo 4C vs. 2019 Audi S5

Detailed Review, Specifications & Comparison

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Both the 4C and the S5 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.


To reliably power the ignition and other systems and to recharge the battery, the 4C has a standard 160-amp alternator. The S5’s standard 110-amp alternator and largest (optional) 150-amp alternator aren’t as powerful.

To reliably start during all conditions and help handle large electrical loads, the 4C has a standard 500-amp battery. The S5’s 420-amp battery isn’t as powerful.


As tested in Car and Driver the Alfa Romeo 4C is faster than the Audi S5:




Zero to 30 MPH

1.5 sec

1.6 sec

Zero to 60 MPH

4.1 sec

4.3 sec

Zero to 100 MPH

10.7 sec

10.9 sec

5 to 60 MPH Rolling Start

5.1 sec

5.6 sec

Quarter Mile

12.8 sec

12.9 sec

Top Speed

159 MPH

155 MPH

Fuel Economy and Range

On the EPA test cycle the 4C gets better fuel mileage than the S5 Cabriolet (24 city/34 hwy vs. 21 city/29 hwy).

The 4C 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.


The 4C 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 S5 doesn’t offer an SMG or a conventional manual transmission.

The 4C’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 S5 doesn’t offer launch control.

Brakes and Stopping

The 4C stops shorter than the S5:





70 to 0 MPH

144 feet

150 feet

Car and Driver

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the 4C is 2 inches wider in the front and 1.4 inches wider in the rear than on the S5.


The Alfa Romeo 4C may be more efficient, handle and accelerate better because it weighs about 1350 to 1700 pounds less than the Audi S5.

The 4C is 2 feet, 3.7 inches shorter than the S5, making the 4C easier to handle, maneuver and park in tight spaces.

The 4C is 7.2 inches shorter in height than the S5, making the 4C much easier to wash and garage and drive (lower center of gravity).

Economic Advantages

Insurance will cost less for the 4C owner. The Complete Car Cost Guide estimates that insurance for the 4C will cost $900 to $2635 less than the S5 over a five-year period.


The 4C was chosen as one of Automobile Magazine’s “All Stars” in 2015. The S5 has never been an “All Star.”

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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