2019 Acura RDX vs. 2019 Audi Q8

Detailed Review, Specifications & Comparison

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Safety

Both the RDX and the Q8 have standard driver and passenger frontal airbags, front side-impact 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, crash mitigating brakes, rearview cameras, available all wheel drive, blind spot warning systems, around view monitors and rear cross-path warning.

For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the RDX its highest rating: “Top Pick Plus” for 2019, a rating granted to only 36 vehicles tested by the IIHS. The Q8 has not been tested, yet.

Warranty

Acura’s powertrain warranty covers the RDX 2 years and 20,000 miles longer than Audi covers the Q8. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Q8 ends after only 4 years or 50,000 miles.

Reliability

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Acura vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Acura 20th in initial quality. With 6 more problems per 100 vehicles, Audi is ranked 25th.

Fuel Economy and Range

On the EPA test cycle the RDX gets better fuel mileage than the Q8:

 

 

 

MPG

RDX

 

FWD

2.0 turbo 4 cyl.

22 city/28 hwy

 

 

A-Spec 2.0 turbo 4 cyl.

22 city/27 hwy

 

AWD

2.0 turbo 4 cyl.

21 city/27 hwy

 

 

A-Spec 2.0 turbo 4 cyl.

21 city/26 hwy

Q8

 

AWD

3.0 turbo 6 cyl.

17 city/22 hwy

The RDX has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Q8 doesn’t offer a cap-less fueling system.

Transmission

A 10-speed automatic is standard on the Acura RDX, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Q8.

Tires and Wheels

The RDX has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Q8 doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

For better maneuverability, the RDX’s turning circle is 4.6 feet tighter than the Q8’s (38.9 feet vs. 43.5 feet).

For greater off-road capability the RDX has a 2.4 inches greater minimum ground clearance than the Q8 (8.2 vs. 5.8 inches), allowing the RDX to travel over rougher terrain without being stopped or damaged.

Chassis

The Acura RDX may be more efficient, handle and accelerate better because it weighs about 950 to 1200 pounds less than the Audi Q8.

The RDX is 9.5 inches shorter than the Q8, making the RDX easier to handle, maneuver and park in tight spaces.

The RDX uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Q8 doesn’t offer active noise cancellation.

Passenger Space

The RDX has 1.4 inches more front headroom, .2 inches more front shoulder room and .2 inches more rear headroom than the Q8.

Cargo Capacity

The RDX has a much larger cargo volume with its rear seat up than the Q8 with its rear seat up (31.1 vs. 28.6 cubic feet). The RDX has a much larger cargo volume with its rear seat folded than the Q8 with its rear seat folded (79.8 vs. 67.5 cubic feet).

Pressing a switch automatically lowers the RDX’s rear seats, to make changing between passengers and cargo easier. The Q8 doesn’t offer automatic folding seats.

Ergonomics

To improve rear visibility by keeping the rear window clear, the RDX has a standard rear fixed intermittent wiper with a full on position. The rear wiper standard on the Q8 only has an intermittent setting, so in a hard rain visibility isn’t as good.

Model Availability

The RDX is available in both front-wheel drive and four-wheel drive configurations. The Q8 doesn’t offer a two-wheel drive configuration.

Recommendations

The Car Book by Jack Gillis recommends the Acura RDX, based on economy, maintenance, safety and complaint levels.

The Acura RDX outsold the Audi Q8 by over 31 to one during 2018.

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

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