The A5 Prestige offers an optional collision warning system, which detects an impending crash through forward mounted sensors and flashes a bright light and sounds a loud, distinctive tone to warn the driver to brake or maneuver immediately to avoid a collision. The system also pre-charges the brakes to begin deceleration more quickly. The 370Z doesn't offer a collision warning system.
The A5 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The 370Z doesn’t offer all-wheel drive.
The A5 Prestige’s blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. The 370Z doesn’t offer a system to reveal objects in the driver’s blind spots.
Compared to metal, the A5’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Nissan 370Z has a metal gas tank.
Both the A5 and the 370Z have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.
The A5 comes with a full 4 year/50,000 mile basic warranty, which covers the entire car. The 370Z’s 3 year/36,000 mile basic warranty expires 1 year and 14,000 miles sooner.
The A5 comes with free roadside assistance for 4 years unlimited miles. Audi will send help if you run out of gas, need a jump start, lock your keys in or need any assistance on the road. Nissan doesn’t give free roadside assistance for the 370Z.
The A5’s corrosion warranty is 7 years longer than the 370Z’s (12 vs. 5 years).
Audi pays for scheduled maintenance on the A5 for 1 year and 5000 miles. Audi will pay for oil changes, tire rotation, lubrication and any other scheduled maintenance. Nissan doesn’t pay scheduled maintenance for the 370Z.
The Audi A5’s engine uses a cast iron block for durability, while the 370Z’s engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.
The 370Z’s redline is at 7500 RPM, which causes more engine wear, and a greater chance of a catastrophic engine failure. The A5 has a 6300 RPM redline.
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 A5’s reliability will be 112% better than the 370Z.
J.D. Power and Associates’ 2012 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Nissan vehicles. J.D. Power ranks Audi 15th in reliability. With 4 more problems per 100 vehicles, Nissan is ranked 18th.
On the EPA test cycle the A5 2.0 T Cabriolet FWD CVT gets better fuel mileage than the 370Z Coupe Auto with its standard engine (24 city/31 hwy vs. 19 city/26 hwy).
The A5 stops much shorter than the 370Z:
80 to 0 MPH
Road & Track
60 to 0 MPH
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For better traction, the A5 has larger standard tires than the 370Z (245/40R18 vs. 225/50R18). The A5’s optional tires are larger than the largest tires available on the 370Z (255/35R19 vs. 245/40R19).
The A5’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the 370Z’s standard 50 series front and 45 series rear tires. The A5’s optional tires have a lower 35 series profile than the 370Z’s optional 40 series front tires.
The A5 has standard front and rear gas-charged shocks for better control over choppy roads. The 370Z’s suspension doesn’t offer gas-charged shocks.
For a smoother ride and more stable handling, the A5’s wheelbase is 7.9 inches longer than on the 370Z (108.3 inches vs. 100.4 inches).
For better handling and stability, the track (width between the wheels) on the A5 is 1.7 inches wider in the front than the average track on the 370Z.
The A5 Coupe Quattro handles at .94 G’s, while the 370Z NISMO Coupe pulls only .93 G’s of cornering force in a Road & Track skidpad test.
The A5 has standard seating for 4 passengers; the 370Z can only carry 2.
The A5 Coupe has 32.4 cubic feet more passenger volume than the 370Z Coupe (84 vs. 51.6). The A5 Cabriolet has 28.7 cubic feet more passenger volume than the 370Z Roadster (81 vs. 52.3).
The A5 Coupe has a much larger trunk than the 370Z Coupe (12.2 vs. 6.9 cubic feet).
The A5 Cabriolet has a much larger trunk with its top down than the 370Z Roadster (10.2 vs. 4.2 cubic feet).
A low lift-over trunk design makes loading and unloading the A5 Coupe easier. The A5 Coupe’s trunk lift-over height is 26.2 inches, while the 370Z’s liftover is 35.6 inches. The A5 Cabriolet’s liftover is only 26.1 inches.
To help each driver find a more comfortable driving position, the A5 has a telescoping steering wheel. Much better than just a tilt steering wheel or adjustable seat, this allows a short driver to sit further from the steering wheel while maintaining contact with the pedals. The 370Z doesn’t offer a telescoping steering wheel.
When two different drivers share the A5, the optional memory seats and mirrors make it convenient for both. Each setting activates different, customized memories for the driver’s seat position and outside mirror angle. The 370Z doesn’t offer a memory system.
The A5’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 370Z’s manually variable intermittent wipers have to be constantly adjusted.
Heated windshield washer nozzles are standard on the A5 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The 370Z doesn’t offer heated windshield washer nozzles.
To help drivers avoid possible obstacles, the A5 Prestige has standard cornering lights to illuminate around corners when the turn signals are activated. The 370Z doesn’t offer cornering lights. The A5 Prestige also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.
A power rear sunshade is optional in the A5 Prestige Coupe to help block heat and glare for the rear passengers. The 370Z doesn’t offer a rear sunshade.
The A5 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 370Z offers an automatic rear view mirror, but its side mirrors don’t dim.
The A5’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The 370Z doesn’t offer dual zone air conditioning.
To keep a safe, consistent following distance, the A5 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 370Z doesn’t offer an adaptive cruise control.
Insurance will cost less for the A5 owner. The Complete Car Cost Guide estimates that insurance for the A5 will cost $685 to $6430 less than the 370Z over a five-year period.
The A5 will cost the buyer less in the long run because of its superior resale value. The Intellichoice estimates that the A5 will retain 57.2% to 60.56% of its original price after five years, while the 370Z only retains 44.49% to 52.25%.
According to The Car Book by Jack Gillis, the A5 is less expensive to operate than the 370Z because typical repairs cost much less on the A5 than the 370Z, including $3 less for an alternator, $61 less for fuel injection, $164 less for front struts, $953 less for a timing belt/chain and $681 less for a power steering pump.
Intellichoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Audi A5 will be $2895 to $13625 less than for the Nissan 370Z.