2019 Audi A6 vs. 2019 BMW 6 Series Gran Coupe

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Audi A6 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The BMW 6 Series Gran Coupe doesn’t offer pretensioners for the rear seat belts.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A6. But it costs extra on the 6 Series Gran Coupe.

To help make backing safer, the A6’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 6 Series Gran Coupe doesn’t offer a cross-path warning system.

Both the A6 and the 6 Series Gran Coupe have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, post-collision automatic braking systems, daytime running lights, rearview cameras, available night vision systems, blind spot warning systems and around view monitors.

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 A6’s 3.0 turbo V6 hybrid produces 20 more horsepower (335 vs. 315) and 37 lbs.-ft. more torque (369 vs. 332) than the 640i Gran Coupe’s standard 3.0 turbo 6 cyl.

Fuel Economy and Range

On the EPA test cycle the A6 3.0T gets better fuel mileage than the 640i Gran Coupe xDrive (22 city/29 hwy vs. 19 city/28 hwy).

To lower fuel costs and make buying fuel easier, the Audi A6 uses regular unleaded gasoline (premium recommended for maximum performance). The 6 Series Gran Coupe requires premium, which can cost 20 to 55 cents more per gallon.

Tires and Wheels

For better ride, handling and brake cooling the A6 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the 640i Gran Coupe. The A6 Prestige’s optional 21-inch wheels are larger than the 20-inch wheels optional on the 6 Series Gran Coupe.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the A6 is 1.7 inches wider in the front than the average track on the 6 Series Gran Coupe.

For better maneuverability, the A6’s turning circle is 2.8 feet tighter than the 6 Series Gran Coupe’s (36.4 feet vs. 39.2 feet). The A6’s turning circle is 4.6 feet tighter than the M6 Gran Coupe’s (36.4 feet vs. 41 feet).

Chassis

The design of the Audi A6 amounts to more than styling. The A6 has an aerodynamic coefficient of drag of .29 Cd. That is lower than the 6 Series Gran Coupe (.29 to .33) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the A6 get better fuel mileage.

Passenger Space

The A6 has 1.1 inches more front shoulder room, 1.1 inches more rear headroom, 2.1 inches more rear legroom and 1.9 inches more rear shoulder room than the 6 Series Gran Coupe.

Cargo Capacity

To make loading and unloading groceries and cargo easier, especially for short adults, the A6 Prestige has a standard power trunk, which opens and closes automatically by pressing a button, or optionally by just kicking your foot under the back bumper, completely leaving your hands free. The 6 Series Gran Coupe doesn’t offer a power trunk.

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 A6 has standard extendable sun visors. The 6 Series Gran Coupe doesn’t offer extendable visors.

Recommendations

The Audi A6/S6 outsold the BMW 6 Series by almost three to one during the 2018 model year.

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

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