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For enhanced safety, the front and rear seat shoulder belts of the Audi RS 5 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 Porsche 911 doesn’t offer pretensioners for the rear seat belts.
The RS 5’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The 911 doesn’t offer pre-crash pretensioners.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the RS 5. But it costs extra on the 911.
The RS 5’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The 911 doesn’t offer a lane departure warning system.
The RS 5 offers an optional Top and Corner View Cameras to allow the driver to see objects all around the vehicle on a screen. The 911 only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
To help make backing safer, the RS 5’s 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 911 doesn’t offer a cross-path warning system.
Both the RS 5 and the 911 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.
There are over 59 percent more Audi dealers than there are Porsche dealers, which makes it much easier should you ever need service under the RS 5’s warranty.
From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Porsche vehicles. Consumer Reports ranks Audi 4 places higher in reliability than Porsche.
The RS 5’s 2.9 turbo V6 produces 74 more horsepower (444 vs. 370) and 112 lbs.-ft. more torque (443 vs. 331) than the 911’s standard 3.0 turbo 6 cyl. The RS 5’s 2.9 turbo V6 produces 24 more horsepower (444 vs. 420) and 75 lbs.-ft. more torque (443 vs. 368) than the 911 S’ standard 3.0 turbo 6 cyl. The RS 5’s 2.9 turbo V6 produces 38 lbs.-ft. more torque (443 vs. 405) than the 911 GTS’ standard 3.0 turbo 6 cyl.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi RS 5 higher (5 out of 10) than the Porsche 911 (1). This means the RS 5 produces up to 39 pounds less smog-producing pollutants than the 911 every 15,000 miles.
The Audi RS 5 comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the 911.
An eight-speed automatic is standard on the Audi RS 5, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the 911.
To facilitate fast shifting and allow the driver to focus on the road, the RS 5 has a standard up-shift light to indicate when the engine is approaching redline. The 911 doesn’t offer an up-shift light.
For better stopping power the RS 5’s standard brake rotors are larger than those on the 911:
For better traction, the RS 5 has larger standard tires than the 911 (265/35R19 vs. 235/40R19). The RS 5’s optional tires are larger than the largest tires available on the 911 (275/30R20 vs. 265/35R20).
The RS 5’s standard tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the 911’s standard 40 series front tires. The RS 5’s optional tires have a lower 30 series profile than the 911’s optional 35 series front tires.
For a smoother ride and more stable handling, the RS 5’s wheelbase is 12.4 inches longer than on the 911 (108.9 inches vs. 96.5 inches).
For better handling and stability, the track (width between the wheels) on the RS 5 is 1.8 inches wider in the front and 1.3 inches wider in the rear than the average track on the 911.
Because it has more passenger and cargo room, the EPA rates the RS 5 a Subcompact car, while the 911 Coupe is rated a Minicompact.
The RS 5 has 14 cubic feet more passenger volume than the 911 Coupe (84 vs. 70).
The RS 5 has 1 inch more front headroom, 4.3 inches more front shoulder room, 5.1 inches more rear headroom, 7.7 inches more rear legroom and 7 inches more rear shoulder room than the 911 Coupe.
The RS 5 has a much larger trunk than the 911 Coupe with its rear seat up (11.6 vs. 5.1 cubic feet). The RS 5 has a much larger trunk with its rear seat folded than the 911 Coupe with its rear seat folded (11.6 vs. 9.1 cubic feet).
With its coupe body style, valet key, locking rear seatbacks and remote trunk release lockout, the RS 5 offers cargo security. The 911’s non-lockable folding seat and non-lockable remote release defeat cargo security.
To make loading groceries and cargo easier when your hands are full, the RS 5’s trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The 911 doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.
The RS 5 offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The 911 doesn’t offer a heads-up display.
If the windows are left open on the RS 5 the driver can close them all at the outside door handle. On a hot day the driver can also lower the windows the same way. The driver of the 911 can only operate the windows from inside the vehicle, with the ignition on.
The Audi Advanced Key standard on the RS 5 allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Porsche 911’s available Porsche Entry and Drive doesn’t unlock the trunk.
Heated windshield washer nozzles are standard on the RS 5 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The 911 doesn’t offer heated windshield washer nozzles.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the RS 5 has standard extendable sun visors. The 911 doesn’t offer extendable visors.
For greater rear passenger comfort, the RS 5 has standard rear a/c vents to keep rear occupants more comfortable. The 911 doesn’t offer rear vents.
The RS 5’s optional Park Steering Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The 911 doesn’t offer an automated parking system.
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