At idle

48 dB

68 dB


82 dB

95 dB

70 MPH Cruising

71 dB

79 dB

Passenger Space

The 370Z has .2 inches more front headroom and 3.6 inches more front shoulder room than the 911 Coupe.

Cargo Capacity

The 370Z has a much larger trunk than the 911 Coupe with its rear seat up (6.9 vs. 5.1 cubic feet).


The 370Z’s standard power windows have a locking feature to keep children from operating them. Porsche does not offer a locking feature on the 911’s standard power windows.

If the windows are left open on the 370Z the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. The driver of the 911 can only operate the windows from inside the vehicle, with the ignition on.

The Intelligent Key standard on the 370Z 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.

The 370Z’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The 911’s cruise control switches are unlit, making them difficult to find at night and operate safely.

Consumer Reports rated the 370Z’s headlight performance “Very Good,” a higher rating than the 911’s headlights, which were rated “Fair.”

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the 370Z has standard extendable sun visors. The 911 doesn’t offer extendable visors.

Economic Advantages

Insurance will cost less for the 370Z owner. The Complete Car Cost Guide estimates that insurance for the 370Z will cost $775 to $13445 less than the 911 over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Nissan 370Z will be $39339 to $98266 less than for the Porsche 911.


Consumer Reports? recommends both the Nissan 370Z and the Porsche 911, based on reliability, safety and performance.

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

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