Pecheles Automotive Compares 2015 Audi Q5 VS 2015 Acura RDX Near Greenville, NC

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2015 Audi Q5

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2015 Audi Q5

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2015 Acura RDX

Safety Comparison

For enhanced safety, the front and rear seat shoulder belts of the Audi Q5 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 Acura RDX doesn’t offer pretensioners for the rear seat belts.

The Q5’s front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The RDX doesn’t offer pre-crash pretensioners.

The Q5 offers optional Pre Sense Plus, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The RDX doesn't offer collision warning or crash mitigation brakes.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Q5. But it costs extra on the RDX.

Both the Q5 and the RDX have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height-adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Audi Q5 is safer than the Acura RDX:





5 Stars

5 Stars




Neck Compression

41 lbs.

60 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Audi Q5 is safer than the Acura RDX:



Front Seat


5 Stars

5 Stars




Chest Movement

.6 inches

.7 inches

Hip Force

261 lbs.

303 lbs.

Rear Seat


5 Stars

5 Stars

Spine Acceleration

49 G’s

59 G’s

Into Pole


5 Stars

5 Stars




Spine Acceleration

54 G’s

56 G’s

Hip Force

776 lbs.

946 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Warranty Comparison

The Q5’s corrosion warranty is 7 years longer than the RDX’s (12 vs. 5 years).

Reliability Comparison

To reliably power the ignition and other systems and to recharge the battery, the Q5 has a standard 150-amp alternator. The RDX’s 130-amp alternator isn’t as powerful.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without their vehicle while it’s being repaired. Consumer Reports predicts that the Audi Q5 3.0T’s reliability will be 7% better than the RDX.

J.D. Power and Associates rated the Q5 third among compact premium suvs in their 2013 Initial Quality Study. The RDX isn’t in the top three.

J.D. Power and Associates’ 2014 Initial Quality Study of new car owners surveyed provide the statistics that show that Audi vehicles are better in initial quality than Acura vehicles. J.D. Power ranks Audi 11th in initial quality, above the industry average. With 20 more problems per 100 vehicles, Acura is ranked 25th, below the industry average.

Engine Comparison

The Q5 2.0T’s standard 2.0 turbo 4 cyl. produces 7 lbs.-ft. more torque (258 vs. 251) than the RDX’s 3.5 SOHC V6. The Q5 2.0T Hybrid Prestige’s standard 2.0 turbo 4 cyl. hybrid produces 99 lbs.-ft. more torque (350 vs. 251) than the RDX’s 3.5 SOHC V6. The Q5 3.0T’s standard 3.0 supercharged V6 produces 44 lbs.-ft. more torque (295 vs. 251) than the RDX’s 3.5 SOHC V6.

The Q5’s 3.0 turbo V6 diesel produces 177 lbs.-ft. more torque (428 vs. 251) than the RDX’s 3.5 SOHC V6.

Fuel Economy and Range Comparison

On the EPA test cycle the Q5 3.0 TDI gets better fuel mileage than the RDX AWD (24 city/31 hwy vs. 19 city/27 hwy).

On the EPA test cycle the Q5 2.0T gets better fuel mileage than the RDX AWD (20 city/28 hwy vs. 19 city/27 hwy).

Regenerative brakes improve the Q5 Hybrid Prestige’s fuel efficiency by converting inertia back into energy instead of wasting it. The RDX doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the Q5 3.0T/Hybrid’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The RDX doesn’t offer an automatic engine start/stop system.

The Q5 Hybrid’s standard fuel tank has 3 gallons more fuel capacity than the RDX (19 vs. 16 gallons), for longer range between fill-ups. The Q5’s standard fuel tank has 3.8 gallons more fuel capacity than the RDX (19.8 vs. 16 gallons).

Brakes and Stopping Comparison

For better stopping power the Q5’s front brake rotors are larger than those on the RDX:


Q5 3.0T/3.0 TDI/Hybrid


Front Rotors

12.6 inches

13.6 inches

12.3 inches

Rear Rotors

11.8 inches

13 inches

12 inches

The Q5 3.0T/3.0 TDI/Hybrid’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the RDX are solid, not vented.

The Q5 stops shorter than the RDX:



60 to 0 MPH

120 feet

123 feet

Motor Trend

60 to 0 MPH (Wet)

137 feet

144 feet

Consumer Reports

Tires and Wheels Comparison

The Q5’s optional tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the RDX’s 60 series tires.

For better ride, handling and brake cooling the Q5 offers optional 19-inch wheels. The RDX’s largest wheels are only 18-inches.

Suspension and Handling Comparison

The Q5 offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads or off-road. The RDX’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the Q5’s wheelbase is 4.8 inches longer than on the RDX (110.5 inches vs. 105.7 inches).

The Q5’s front to rear weight distribution is more even (52.9% to 47.1%) than the RDX’s (59% to 41%). This gives the Q5 more stable handling and braking.

The Q5 handles at .85 G’s, while the RDX AWD pulls only .77 G’s of cornering force in a Motor Trend skidpad test.

The Q5 executes Motor Trend’s “Figure Eight” maneuver quicker than the RDX AWD (26.9 seconds @ .65 average G’s vs. 27.8 seconds @ .58 average G’s).

For better maneuverability, the Q5’s turning circle is .9 feet tighter than the RDX’s (38.1 feet vs. 39 feet).

Passenger Space Comparison

For enhanced passenger comfort on long trips the Q5’s rear seats recline. The RDX’s rear seats don’t recline.

Cargo Capacity Comparison

The Q5 has a much larger cargo area than the RDX with its rear seat up (29.1 vs. 26.1 cubic feet).

A low lift-over cargo hatch design makes loading and unloading the Q5 easier. The Q5’s cargo hatch lift-over height is 27.3 inches, while the RDX’s liftover is 29.4 inches.

Ergonomics Comparison

The power windows standard on both the Q5 and the RDX have locks to prevent small children from operating them. When the lock on the Q5 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The RDX prevents the driver from operating the other windows just as it does the other passengers.

The Q5’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The RDX’s rear power window switches have to be held the entire time to open or close them fully.

The Q5’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The RDX’s intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Heated windshield washer nozzles are standard on the Q5 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The RDX doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Q5 3.0T/3.0 TDI has standard headlight washers to keep headlight output high. The RDX doesn’t offer headlight washers.

To help drivers avoid possible obstacles, the Q5 Prestige has standard cornering lights to illuminate around corners when the turn signals are activated. The RDX doesn’t offer cornering lights. The Q5 Prestige also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The Q5 offers optional automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The RDX has an automatic rear view mirror, but its side mirrors don’t dim.

The Q5 Prestige’s optional air conditioned front seats cool the driver and front passenger and help take the sting out of hot leather in Summer. The RDX doesn’t offer air conditioned front seats.

Both the Q5 and the RDX offer rear vents. For greater rear passenger comfort, the Q5 has standard rear air conditioning vents to keep rear occupants cool in summer or warm in winter. The RDX doesn’t offer rear air conditioning vents, only heat vents.

To keep a safe, consistent following distance, the Q5 3.0T Prestige offers an optional Adaptive Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The RDX doesn’t offer an adaptive cruise control.

Economic Advantages Comparison

Insurance will cost less for the Q5 owner. The Car Book by Jack Gillis rates the Q5 with a number “8” insurance rate while the RDX is rated higher at a number “10” rate.

The Q5 will cost the buyer less in the long run because of its superior resale value. The Intellichoice estimates that the Q5 will retain 54.85% to 57.62% of its original price after five years, while the RDX only retains 49.01% to 54.28%.

According to The Car Book by Jack Gillis, the Q5 is less expensive to operate than the RDX because typical repairs cost much less on the Q5 than the RDX, including $685 less for a power steering pump.

Recommendations Comparison

The Audi Q5 has won recognition from these important consumer publications:



Consumer Reports® Recommends



Kiplinger’s Award



J.D. Power and Associates rated the Q5 first among compact premium suvs in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The RDX isn’t in the top three.

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