2008 Porsche 911 - Road Test Specs

2008 Porsche 911 Coupe

(3.6L 6-cyl. Twin-turbo 6-speed Manual)
Vehicle
Model year2009
MakePorsche
Model911
StyleGT2 2dr Coupe (3.6L 6cyl Turbo 6M)
Base MSRP$192,560
Options on test vehicleBose High End Sound Package, Floor Mats in Interior Color, Rear Center Console Painted in Exterior Color, Seat Belts in Guards Red, Self-Dimming Mirrors and Rain Sensor, Sport Chrono Package, Trim Strip Painted Exterior Color, Wheels Painted Black
As-tested MSRP$198,875
Drivetrain
Drive typeRear-wheel drive
Engine typeTwin-turbocharged flat-6
Displacement (cc/cu-in)3,600cc (220 cu-in)
Block/head materialAluminum/aluminum
ValvetrainDouble overhead camshaft, 4 valves per cylinder, variable intake/exhaust valve timing
Compression ratio (x:1)9.0:1
Redline (rpm)6,750
Horsepower (hp @ rpm)530 @ 6,500
Torque (lb-ft @ rpm)505 @ 2,200
Transmission type6-speed manual
Transmission and axle ratios (x:1)I = 3.15, II = 1.89, III = 1.40, IV = 1.09, V = 0.89, VI = 0.73, FD = 3.44, R = 2.86
Chassis
Suspension, frontIndependent, MacPherson struts with two-mode self-adjusting dampers, coil springs and stabilizer bar
Suspension, rearIndependent, multilink, two-mode self-adjusting dampers, coil springs and stabilizer bar
Steering typeSpeed-proportional hydraulic-assist rack-and-pinion power steering
Steering ratio (x:1)Variable 17.1-13.8:1
Tire brandMichelin
Tire modelPilot Sport Cup
Tire typeHigh-performance
Tire size, front235/35ZR19 (87Y)
Tire size, rear325/30ZR19 (101Y)
Wheel size19 by 8.5 inches front -- 19 by 12.0 inches rear
Wheel materialPainted cast-aluminum alloy
Brakes, front15.0-inch vented/drilled composite-ceramic disc with 6-piston fixed caliper
Brakes, rear13.8-inch vented/drilled composite-ceramic disc with 4-piston fixed caliper
Track Test Results
0-45 mph (sec.)2.4
0-60 mph (sec.)3.9
0-75 mph (sec.)5.1
1/4-mile (sec. @ mph)11.7 @ 121.3
0-60 with 1 foot of rollout (sec.)3.6
Braking, 30-0 mph (ft.)25
60-0 mph (ft.)96
Slalom, 6 x 100 ft. (mph)71.6
Skid pad, 200-ft. diameter (lateral g)0.99
Sound level @ idle (dB)62.8
@ Full throttle (dB)90.6
@ 70 mph cruise (dB)73.5
Test Driver Ratings & Comments
Acceleration commentsUsing the Porsche Launch Assist, the launches were inconsistent. Four of five attempts resulted in a "bog 'n go" experience. As the tires heated up and became stickier, it was more beneficial to shut off both traction and stability controls and use brain power to accomplish a good time to 30 mph. That said, I wouldn't characterize the GT2 as having turbo lag. It's still very quick prior to the boost surge at about 3,200 rpm. Luckily, each redline upshift drops engine revs to that max-attack rpm. Shifter requires commitment and high effort. Clutch is usefully firm, and offers linear (not spring-loaded) feedback.
Braking ratingExcellent
Braking commentsStunningly talkative, tremendously powerful and a little gravelly sounding. Pedal pressure -- not pedal travel -- determines effectiveness. Virtually no squat or dive under full ABS braking. Knowing it would require many stops to put useful heat into the brake system, I started with a 100-0-mph stop. Result: 99 feet on the first stop. By the third stop, it was down to 96 feet. Thereafter, it never went above 99 feet and showed no signs of fading, ever. New Inside Line 60-0 stopping distance record. Not surprised.
Handling ratingExcellent
Handling commentsThe GT2 is effectively neutral on the skid pad with a hint of understeer -- a remarkable achievement considering the 62 percent rear-weight bias. The arc can be adjusted with throttle input alone, and unlike the 2005 GT2, there's no threat of oversteer at all -- even when lifting abruptly out of the throttle. This is easily a 1.0g car on better pavement. Steering is so informative it can tell you what day of the week the pavement was poured. In the slalom, the GT2's amazing yaw response is like that of a racecar. Unfortunately, this less-than-ideal course has a slight dip at cone #3 which bumps the car off line slighly -- even in the softer of the two PASM modes. The result is that the car remains totally in control, but it arrives late at the fourth cone. Huge grip/capability and this time, it's also trustworthy.
Testing Conditions
Elevation (ft.)1,121
Temperature (F)87.6
Wind (mph, direction)3 mph SW
Fuel Consumption
EPA fuel economy (mpg)16 city/23 highway
Edmunds observed (mpg)18 combined average (25.5 best, 14.1 worst)
Fuel tank capacity (U.S. gal.)17.7
Dimensions & Capacities
Curb weight, mfr. claim (lbs.)3,175
Curb weight, as tested (lbs.)3,280
Weight distribution, as tested, f/r (%)38/62
Length (in.)176.9
Width (in.)72.9
Height (in.)50.5
Wheelbase (in.)92.5
Track, front (in.)59.7
Track, rear (in.)61.1
Turning circle (ft.)35.8
Legroom, front (in.)66.6
Headroom, front (in.)38.4
Shoulder room, front (in.)51.5
Seating capacity2
Cargo volume (cu-ft)3.7 (plus 7.2 cu-ft behind seats)
Warranty
Bumper-to-bumper4 years/50,000 miles
Powertrain4 years/50,000 miles
Corrosion10 years/Unlimited miles
Roadside assistance4 years/50,000 miles
Free scheduled maintenanceNot available
Safety
Front airbagsStandard
Side airbagsStandard dual front
Head airbagsStandard front
Knee airbagsNot available
Antilock brakes4-wheel ABS
Electronic brake enhancementsElectronic brakeforce distribution
Traction controlStandard electronic, plus a limited-slip differential
Stability controlStandard, multi-threshold
Rollover protectionNot available
Tire-pressure monitoring systemDirect pressure monitoring, position specific
Emergency assistance systemOptional (Phone Module plus SIM card required)
NHTSA crash test, driverNot tested
NHTSA crash test, passengerNot tested
NHTSA crash test, side frontNot tested
NHTSA crash test, side rearNot tested
NHTSA rollover resistanceNot tested

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