Comparison: 2017 Acura RLX vs 2017 Audi A6

September 19th, 2017 by

Drivers in Middletown shopping for a new luxury sedan should compare models before purchasing because many upscale automakers inflate their prices simply due to their recognizable name. Acura has had to work a little harder, and it shows when you look closer.

When comparing the 2017 Acura RLX to the 2017 Audi A6, drivers may note that the Audi doesn’t have a hybrid engine and doesn’t come standard with many of the driver assistance technologies you might expect from a luxury car.

Read our side-by-side comparison for more details on how these two luxury sedans stack up:


Acura RLX

The 2017 RLX comes with one gasoline engine and one hybrid. The base engine is a 3.5-liter V6 that makes 310 horsepower and 372 lb-ft of torque, mated to a 6-speed automatic transmission. According to EPA estimates, it gets 20 MPG city and 30 MPG highway*.

The 2017 RLX Sport Hybrid is one surprising, fuel-efficient sedan. It comes equipped with a 3.5-liter V6 combined with three electric motors, mated to a 7-speed dual-clutch automatic transmission. The hybrid powertrain makes a net 377 horsepower and 341 lb-ft of torque, thanks to the trio of motors that work in sync to balance power and torque to both axles. The RLX Hybrid gets 29 MPG city and 30 MPG highway*.

Audi A6

The 2017 A6 has three gasoline engine options, but none strike the same power-efficiency balance that the RLX does. The base powertrain is a 2.0-liter turbocharged inline-4 that makes 252 horsepower and 273 lb-ft of torque, mated to a 7-speed automatic transmission. The A6 3.0T has a 3.0-liter supercharged V6 that makes 333 horsepower and 340 lb-ft of torque (with 8-speed automatic) that gets 21 MPG city and 29 MPG highway. The Audi S6 has a 4.0-liter twin-turbocharged V8 engine that makes 450 horsepower and 406 lb-ft of torque (with 7-speed automatic) that gets 18 MPG city and 27 MPG highway.

Safety and Tech

Acura RLX

The RLX and the A6 have identical safety ratings, with both 2017 models earning the Insurance Institute for Highway Safety’s 2017 Top Safety Pick title, as well as 5-Star Overall Ratings from the National Highway Traffic Safety Administration‡. However, the RLX comes with a more impressive lineup of safety technology.

All models of the 2017 RLX are equipped with the AcuraWatch suite of features, including Adaptive Cruise Control with low-speed follow, Lane Keeping Assist, Road Departure Mitigation, and Collision Mitigation Braking with Head-Up Warning. Each model also has a multi-view rear camera with dynamic gridlines and a blind spot information system.

Audi A6

The 2017 A6 comes standard with Audi pre sense basic, a type of forward collision warning, as well as a parking system with rearview camera. To get the full suite of driver assistance features, you’ll need to upgrade to the Premium Plus trim or higher.


Acura RLX Starting at $54,450**

Audi A6 Starting at $47,600 MSRP


*2017 EPA mileage based on 2017 EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.

‡Government 5-Star Safety Ratings are part of the National Highway Traffic Safety Administration’s (NHTSA’s) New Car Assessment Program. For additional information on the 5-Star Safety Ratings program, please visit

**Prices shown are Acura suggested retail prices only and do not include taxes, license or a destination and handling charge. Actual vehicles/accessory costs, labor and installation vary. Dealers set their own prices. Please consult your selected dealer. 

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