2019 Audi S5 vs. 2019 BMW 4 Series Coupe

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Audi S5 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW 4 Series Coupe doesn’t offer pretensioners for the rear seat belts.

The S5’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The 4 Series Coupe doesn’t offer pre-crash pretensioners.

The S5 has standard Secondary Collision Brake Assist, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The 4 Series Coupe 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 S5. But it costs extra on the 4 Series Coupe.

To help make backing safer, the S5’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 4 Series Coupe doesn’t offer a cross-path warning system.

Both the S5 and the 4 Series Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the S5 the rating of “Top Pick” for 2017, a rating granted to only 139 vehicles tested by the IIHS. The 4 Series Coupe has not been tested, yet.

Reliability

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than BMW vehicles. Consumer Reports ranks Audi 1 place higher in reliability than BMW.

Engine

The S5’s 3.0 turbo V6 produces 101 more horsepower (349 vs. 248) and 111 lbs.-ft. more torque (369 vs. 258) than the 430i Coupe’s standard 2.0 turbo 4 cyl. The S5’s 3.0 turbo V6 produces 27 more horsepower (349 vs. 322) and 37 lbs.-ft. more torque (369 vs. 332) than the 440i Coupe’s standard 3.0 turbo 6 cyl.

Brakes and Stopping

For better stopping power the S5’s brake rotors are larger than those on the 4 Series Coupe:

 

S5

430i Coupe

440i Coupe

Front Rotors

13.8 inches

13 inches

13.4 inches

Rear Rotors

13 inches

11.8 inches

13 inches

The S5 stops much shorter than the 4 Series Coupe:

 

S5

4 Series Coupe

 

70 to 0 MPH

150 feet

170 feet

Car and Driver

Tires and Wheels

For better traction, the S5 has larger standard tires than the 4 Series Coupe (245/40R18 vs. 225/45R18). The S5’s optional tires are larger than the largest tires available on the 4 Series Coupe (265/30R20 vs. 225/40R19).

The S5’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 4 Series Coupe’s standard 45 series tires. The S5’s optional tires have a lower 30 series profile than the 440i Coupe’s optional 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the S5 offers optional 20-inch wheels. The 4 Series Coupe’s largest wheels are only 19-inches.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the S5 is 1.6 inches wider in the front than on the 4 Series Coupe.

The S5 Prestige Coupe handles at .94 G’s, while the 430i Coupe pulls only .89 G’s of cornering force in a Car and Driver skidpad test.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Audi service is better than BMW. J.D. Power ranks Audi third in service department satisfaction. With a 14% lower rating, BMW is ranked 8th.

Ergonomics

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the S5 has standard extendable sun visors. The 4 Series Coupe doesn’t offer extendable visors.

Optional air-conditioned seats in the S5 keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The 4 Series Coupe doesn’t offer air-conditioned seats.

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

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