Certified Benz & Beemer Compares 2004 Porsche 911 VS 2004 Acura NSX Near Scottsdale, AZ

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2004 Porsche 911

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VS

2004 Acura NSX

Safety Comparison

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The NSX cannot safely hold a rear facing infant safety seat, the only safe, legal way to transport babies from birth to one year old. Because the NSX has no rear seats, the only unoccupied seat faces the passenger side airbag, which can injure or kill a baby in a rear facing safety seat. The 911’s rear seat is safe for a rear facing infant safety seat.

The 911 has standard front seat tall, head-protecting side-impact airbags, which act as a forgiving barrier between the passengers and the door. Combined with high-strength steel door beams this system increases protection from broadside collisions. The NSX doesn’t offer side-impact airbags.

The 911 has all wheel drive to maximize traction under poor conditions, especially in ice and snow. The NSX doesn’t offer all wheel drive.

The 911 offers optional Porsche Stability Management (PSM), which uses the antilock brake hardware along with powerful software and additional sensors to detect the beginning of a skid. PSM then intervenes by automatically applying the brake at one appropriate wheel, preventing a skid. The NSX doesn’t offer skid prevention.

The 911 offers an optional Park Assistance to help warn drivers about vehicles, pedestrians or other obstacles behind their vehicle. This collision warning system uses radar to detect obstacles behind the rear bumper. The NSX doesn’t offer a rear collision sensor.

Both the 911 and the NSX have standard driver and passenger frontal airbags, front seatbelt pretensioners, four wheel antilock brakes and available traction control.

Warranty Comparison

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The 911’s corrosion warranty is 5 years longer than the NSX’s (10 vs. 5 years).

Reliability Comparison

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The camshafts in the 911’s engine are driven by a hardened steel chain, with no maintenance needs. The NSX’s camshafts are driven by a rubber belt which eventually needs to be replaced. If the NSX’s cam drive belt breaks the engine could be severely damaged when the pistons hit the opened valves.

J.D. Power and Associates rated the 911 second among premium sports cars in initial quality. The NSX isn’t in the top three.

J.D. Power and Associates’ surveys of the owners of three-year-old cars provide the long-term dependability statistics which show that Porsche vehicles are more reliable than Acura vehicles. J.D. Power ranks Porsche fourth in reliability. With 3 more problems per 100 vehicles, Acura is ranked fifth.

Engine Comparison

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The 911 has more powerful engines than the NSX:

Horsepower

Torque

911 3.6 DOHC 6 cyl.

315 HP

273 lbs.-ft.

911 40th Anniversary 3.6 DOHC 6 cyl.

345 HP

273 lbs.-ft.

911 GT3 3.6 DOHC 6 cyl.

380 HP

284 lbs.-ft.

911 Turbo 3.6 turbo DOHC 6 cyl.

415 HP

415 lbs.-ft.

911 Turbo X50 3.6 turbo DOHC 6 cyl.

444 HP

457 lbs.-ft.

NSX automatic 3.0 DOHC V6

252 HP

210 lbs.-ft.

NSX 3.2 DOHC V6

290 HP

224 lbs.-ft.

As tested in Road & Track the Porsche 911 6 cyl. is faster than the Acura NSX (manual transmissions tested):

911

NSX

Zero to 60 MPH

4.9 sec

5 sec

Quarter Mile

13.4 sec

13.5 sec

In a Road & Track race course test, the Porsche 911 Turbo Carrera 4 was clocked 3.42 seconds faster than the Acura NSX-T (70.73 sec. vs. 74.15 sec.).

For more instantaneous acceleration and better engine flexibility in any gear, the 911’s engines produce their peak torque at lower RPM’s than the NSX:

Torque

911 3.6 DOHC 6 cyl.

4250 RPM

911 40th Anniversary 3.6 DOHC 6 cyl.

4250 RPM

911 GT3 3.6 DOHC 6 cyl.

5000 RPM

911 Turbo 3.6 turbo DOHC 6 cyl.

2700 RPM

911 Turbo X50 3.6 turbo DOHC 6 cyl.

3500 RPM

NSX automatic 3.0 DOHC V6

5300 RPM

NSX 3.2 DOHC V6

5500 RPM

The flat cylinder configuration of the boxer engine in the 911 lowers its center of gravity, enhancing handling stability. The NSX doesn’t offer a boxer engine configuration.

Fuel Economy and Range Comparison

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The 911 6 speed manual gets better fuel mileage than the NSX 6 speed manual (18 city/26 hwy vs. 17 city/24 hwy).

Brakes and Stopping Comparison

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For better stopping power the 911’s front brake rotors are larger than those on the NSX:

911

GT2

NSX

Front Rotors

12.53 inches

13.8 inches

11.73 inches

Rear Rotors

11.78 inches

13.8 inches

11.93 inches

The 911’s standard brakes have 19% more swept area (the area covered by the brake pads) than the NSX (535 vs. 450.3 square inches), so the 911 has more braking power available. The GT2’s brakes have 59% more swept area (the area covered by the brake pads) than the NSX (717 vs. 450.3 square inches), so the GT2 has more braking power available.

The 911 stops much shorter than the NSX:

911

NSX

80 to 0 MPH

198 feet

220 feet

Road & Track

70 to 0 MPH

159 feet

162 feet

Car and Driver

60 to 0 MPH

110 feet

134 feet

Popular Science

Tires and Wheels Comparison

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For better traction, the GT2’s tires are larger than the largest tires available on the NSX (F:235/40R18 & R:315/30R18 vs. F:215/40R17 & R:255/40R17).

The 911’s optional 285/30R18 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) which provides a stiffer sidewall than the NSX’s 40 series tires.

For better ride, handling and brake cooling the 911 offers optional 18 inch wheels. The NSX’s largest wheels are only 17 inches.

Suspension and Handling Comparison

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The GT2 handles at 1.02 G’s, while the NSX-T pulls only .89 G’s of cornering force in a Road & Track skidpad test.

The GT2 goes through Road & Track’s slalom 6.6 MPH faster than the NSX (68.7 vs. 62.1 MPH).

For better maneuverability the 911’s turning circle is 3.3 feet tighter than the NSX’s (34.8 vs. 38.1 feet).

Chassis Comparison

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As tested by Road & Track, the interior of the 911 Cabriolet is quieter than the NSX-T:

911

NSX

Full-Throttle

79 dB

81 dB

Passenger Space Comparison

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The 911 has standard seating for 4 passengers; the NSX can only carry 2.

The 911 has 21.1 cubic feet more passenger volume than the NSX (70 vs. 48.9).

Ergonomics Comparison

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The 911’s entire steering wheel hub sounds the horn, facilitating hitting the horn in an emergency. The NSX has two small spoke buttons. These buttons can be hard to reach in an emergency.

When four different drivers share the 911, the optional memory seats and mirrors make it convenient for all four. Each keyless remote activates different, customized memories for the seat position and outside mirror positions. The NSX doesn’t offer a memory system.

The 911’s power windows raise and lower automatically with one touch, especially convenient at tollbooths or drive-up windows. The power windows on the NSX don’t raise automatically, and only the driver’s window lowers automatically.

If the windows are left down on the 911 the driver can raise them all using the key in the outside lock cylinder. On a hot day the driver can lower all the windows from outside the car using the remote. The driver of the NSX can only operate the windows from inside the vehicle, with the ignition on.

The 911’s optional rain-sensitive wipers adjust their speed to the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The NSX’s intermittent wipers have to be constantly adjusted.

To improve rear visibility by keeping the rear window clear, the 911 Coupe offers an optional rear wiper. The NSX doesn’t offer a rear wiper.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The 911 offers available headlight washers to keep headlight output high. The NSX doesn’t offer headlight washers.

The 911’s outside mirrors include heating elements to clear off the mirrors for better visibility. The NSX doesn’t offer heated side mirrors.

When the 911 Turbo/GT2 is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The NSX’s mirror doesn’t automatically adjust for backing.

The 911’s optional rear and side view mirrors have an automatic dimming feature. This mirror can be set to automatically darken quickly when headlights shine on it, keeping following vehicles from blinding or distracting the driver. The NSX doesn’t offer the luxury of automatic dimming mirrors.

The 911’s optional heated front seats keep the driver and front passenger extremely comfortable in the winter. The NSX doesn’t offer heated seats.

A built-in pollen filter with a charcoal activated canister removes pollen, exhaust fumes and other pollutants from the 911’s passenger compartment. This helps prevent lung and/or sinus irritation, which can trigger allergies or asthma. The NSX doesn’t offer a filtration system.

Economic Advantages Comparison

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The headlight lenses on the 911 are made of plastic to be lighter, more resistant to damage and less expensive to replace than the glass headlight lenses on the NSX.

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