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For better traction and acceleration, the ATS Coupe has larger rear tires than the 370Z (255/35R18 vs. 245/45R18).
The ATS Coupe’s 225/40R18 front and 255/35R18 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the 370Z’s standard 50 series front and 45 series rear tires.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the ATS Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The 370Z doesn’t offer run-flat tires.
The ATS Coupe 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. The 370Z’s suspension doesn’t offer adjustable shock absorbers.
For a smoother ride and more stable handling, the ATS Coupe’s wheelbase is 8.9 inches longer than on the 370Z (109.3 inches vs. 100.4 inches).
The ATS Coupe’s front to rear weight distribution is more even (51% to 49%) than the 370Z’s (54.3% to 45.7%). This gives the ATS Coupe more stable handling and braking.
The ATS Coupe handles at .94 G’s, while the 370Z pulls only .91 G’s of cornering force in a Car and Driver skidpad test.
The ATS Coupe has standard seating for 4 passengers; the 370Z can only carry 2.
The ATS Coupe has 32.3 cubic feet more passenger volume than the 370Z (83.9 vs. 51.6).
The ATS Coupe has a much larger trunk than the 370Z (10.4 vs. 6.9 cubic feet).
The ATS Coupe V6 offers up to a 1000 lbs. towing capacity. The 370Z has no towing capacity.
The ATS Coupe uses gas struts to support the hood for easier service access. The 370Z uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.
The ATS Coupe has a maintenance free battery for long life without checking the battery’s water level. The 370Z doesn’t have a maintenance free battery, so the water level in the battery’s cells must be checked often to prevent damage.
J.D. Power and Associates surveys of service recipients show that Cadillac service is better than Nissan. J.D. Power ranks Cadillac third in service department satisfaction. With a 48% lower rating, Nissan is ranked 17th.
The ATS Coupe has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The 370Z doesn’t offer a remote starting system.
To help each driver find a more comfortable driving position, the ATS Coupe V6 offers 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 ATS Coupe, the optional memory system makes it convenient for both. Each keyless remote activates different, customized memories for the driver’s seat position, steering wheel position and outside mirror angle. The 370Z doesn’t offer a memory system.
The ATS Coupe’s optional easy entry system glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The 370Z doesn’t offer an easy entry system.
The ATS Coupe V6 offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The 370Z doesn’t offer a heads-up display.
The ATS Coupe’s optional wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield. The 370Z’s manually variable intermittent wipers have to be constantly adjusted.
While driving with high beams on, sensitive light sensors available for the ATS Coupe detect other vehicles which could be blinded and automatically switch to low beams. The 370Z doesn’t offer automatic dimming high beams.
To help drivers see further while navigating curves, the ATS Coupe offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The 370Z doesn’t offer cornering lights.
The ATS Coupe’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Nissan only offers heated mirrors on the 370Z Sport/Sport Touring/NISMO.
When the ATS Coupe with available tilt-down mirrors is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The 370Z’s mirrors don’t automatically adjust for backing.
The ATS Coupe 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 has an automatic rear view mirror, but its side mirrors don’t dim.
On extremely cold winter days, the ATS Coupe’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The 370Z doesn’t offer a heated steering wheel.
The ATS Coupe’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 ATS Coupe V6 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.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Cadillac ATS has a standard wireless phone charging system (Qi) in the center console. The 370Z doesn’t offer wireless personal charging.
The ATS Coupe offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The 370Z doesn’t offer a house-current electrical outlet.
According to The Car Book by Jack Gillis, the ATS Coupe is less expensive to operate than the 370Z because typical repairs cost much less on the ATS Coupe than the 370Z, including $227 less for front struts, $100 less for a timing belt/chain and $22 less for a power steering pump.
A group of representative automotive journalists from North America selected the ATS as the 2013 North American Car of the Year. The 370Z has never been chosen.
The Cadillac ATS outsold the Nissan 370Z by over three to one during 2018.
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