2019 Alfa Romeo Giulia Quadrifoglio vs. 2019 Audi RS 5 Sportback

Detailed Review, Specifications & Comparison

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2019 Alfa Romeo Giulia Quadrifoglio

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Both the Giulia Quadrifoglio and the RS 5 Sportback 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, blind spot warning systems, rearview cameras, rear cross-path warning and available lane departure warning systems.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, with its optional front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the Giulia Quadrifoglio the rating of “Top Pick” for 2018, a rating granted to only 104 vehicles tested by the IIHS. The RS 5 Sportback has not been tested, yet.


To reliably start during all conditions and help handle large electrical loads, the Giulia Quadrifoglio has a standard 525-amp battery. The RS 5 Sportback’s 420-amp battery isn’t as powerful.


The Giulia Quadrifoglio’s 2.9 turbo V6 produces 61 more horsepower (505 vs. 444) than the RS 5 Sportback’s 2.9 turbo V6.

Fuel Economy and Range

An engine control system that can shut down half of the engine’s cylinders helps improve the Giulia Quadrifoglio’s fuel efficiency. The RS 5 Sportback doesn’t offer a system that can shut down part of the engine.

In heavy traffic or at stoplights the Giulia Quadrifoglio’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The RS 5 Sportback doesn’t offer an automatic engine start/stop system.


The Giulia Quadrifoglio’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 RS 5 Sportback doesn’t offer launch control.

Tires and Wheels

For better traction and acceleration, the Giulia Quadrifoglio has larger rear tires than the RS 5 Sportback (285/30R19 vs. 265/35R19). The Giulia Quadrifoglio’s rear tires are larger than the largest rear tires available on the RS 5 Sportback (285/30R19 vs. 275/30R20).

The Giulia Quadrifoglio’s 285/30R19 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the RS 5 Sportback’s standard 35 series tires.

Suspension and Handling

The Giulia Quadrifoglio has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The RS 5 Sportback’s suspension doesn’t offer adjustable shock absorbers.

For better maneuverability, the Giulia Quadrifoglio’s turning circle is .9 feet tighter than the RS 5 Sportback’s (37.5 feet vs. 38.4 feet).


The Alfa Romeo Giulia Quadrifoglio may be more efficient, handle and accelerate better because it weighs about 300 pounds less than the Audi RS 5 Sportback.

The Giulia Quadrifoglio is 5.7 inches shorter than the RS 5 Sportback, making the Giulia Quadrifoglio easier to handle, maneuver and park in tight spaces.

Passenger Space

The Giulia Quadrifoglio has 1.1 inches more front legroom, .4 inches more front shoulder room and .6 inches more rear headroom than the RS 5 Sportback.


The Giulia Quadrifoglio’s standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. The RS 5 Sportback doesn’t offer an easy entry system.

The Giulia Quadrifoglio’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. Audi does not offer a locking feature on the RS 5 Sportback’s standard power windows.

To help drivers see further while navigating curves, the Giulia Quadrifoglio has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The RS 5 Sportback doesn’t offer cornering lights.

Both the Giulia Quadrifoglio and the RS 5 Sportback offer available heated front seats. The Giulia Quadrifoglio also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the RS 5 Sportback.


The Giulia Quadrifoglio was chosen as one of Car and Driver’s “Top Ten” in 2018. The RS 5 Sportback has never been a Car and Driver “Top Ten” pick.

Motor Trend selected the Giulia Quadrifoglio as their 2018 Car of the Year. The RS 5 Sportback has never been chosen.

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

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