For enhanced safety, the front shoulder belts of the Chevrolet Impala are height-adjustable, and the rear seat shoulder belts have child comfort guides to move the belt to properly fit children. A better fit can prevent injuries and the increased comfort also encourages children to buckle up. The Audi A6 has only front height-adjustable seat belts.

Both the Impala and the A6 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, rear parking sensors and rear cross-path warning.

Chevrolet's powertrain warranty covers the Impala 1 year and 10,000 miles longer than Audi covers the A6. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the A6 ends after only 4 years or 50,000 miles.

There are almost 10 times as many Chevrolet dealers as there are Audi dealers, which makes it much easier should you ever need service under the Impala's warranty.

The Impala 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 A6 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' 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Chevrolet vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Chevrolet 6th in initial quality, above the industry average. With 21 more problems per 100 vehicles, Audi is ranked 22nd, below the industry average.

J.D. Power and Associates' 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Chevrolet vehicles are more reliable than Audi vehicles. J.D. Power ranks Chevrolet fourth in reliability, above the industry average. With 9 more problems per 100 vehicles, Audi is ranked 8th.

To lower fuel costs and make buying fuel easier, the Chevrolet Impala uses regular unleaded gasoline. The A6 requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

The Impala'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 A6 doesn't offer drift compensation steering.

The Chevrolet Impala may be more efficient, handle and accelerate better because it weighs about 450 to 550 pounds less than the Audi A6.

The Impala has 1.9 inches more front headroom, 4.5 inches more front legroom, .1 inches more front shoulder room, 2.4 inches more rear legroom and .4 inches more rear shoulder room than the A6.

The Impala has a much larger trunk than the A6 (18.8 vs. 13.7 cubic feet).

The Impala 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 climate system will also automatically heat or cool the interior. The A6 doesn't offer a remote starting system.

The Impala offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The A6 doesn't offer a house-current electrical outlet.

Insurance will cost less for the Impala owner. The Complete Car Cost Guide estimates that insurance for the Impala will cost $2835 to $5645 less than the A6 over a five-year period.

The Impala will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Impala will retain 42.7% to 43.7% of its original price after five years, while the A6 only retains 35.72% to 36.55%.

According to The Car Book by Jack Gillis, the Impala is less expensive to operate than the A6 because typical repairs cost much less on the Impala than the A6, including $173 less for a water pump, $61 less for a muffler, $2 less for front brake pads, $537 less for a starter, $1235 less for fuel injection, $77 less for a fuel pump and $221 less for front struts.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Chevrolet Impala will be $29524 to $32982 less than for the Audi A6.

Consumer Reports® recommends the Chevrolet Impala, based on reliability, safety and performance.

The Chevrolet Impala outsold the Audi A6/S6 by almost three to one during the 2019 model year.