2009 Infiniti G37 Journey Road Test Specs | Edmunds

2009 INFINITI G37 - Road Test Specs

2009 Infiniti G37 Sedan

(3.7L V6 7-speed Automatic)


Model year2009
StyleJourney 4dr Sedan (3.7L 6cyl 7A)
Base MSRP$33,700
Options on test vehiclePremium Package ($2,500 -- includes sunroof, Bose audio system with iPod interface, power tilt-telescopic steering wheel, one-touch up-down rear windows, Bluetooth, heated front seats and a memory function with power entry-exit assist for the driver seat, steering wheel and exterior mirrors); Navigation Package ($2,150 -- includes navigation system with 9.3-gigabyte hard drive, compact flash slot, XM NavTraffic preparation, voice-command capability, and back-up camera); Sport Package ($2,100 -- includes 18-inch alloy wheels with performance tires, sport-tuned suspension, viscous limited-slip differential, paddle shifters, upgraded brakes, sport seats, aluminum pedals, 14.7:1 steering ratio).
As-tested MSRP$41,265


Drive typeRear-wheel drive
Engine type60-degree V6
Displacement (cc/cu-in)3,699cc (226 cu-in)
Block/head materialAluminum/Aluminum
Valvetrain4 valves per cylinder, chain-driven double overhead camshaft with variable valve timing and lift
Compression ratio (x:1)11.0
Redline (rpm)7,600
Horsepower (hp @ rpm)328 @ 7,000
Torque (lb-ft @ rpm)269 @ 5,200
Transmission type7-speed automatic
Transmission and axle ratios (x:1)1st 4.923; 2nd 3.193; 3rd 2.042; 4th 1.411; 5th 1.000; 6th 0.862; 7th 0.771; Final Drive 3.357


Suspension, frontIndependent, double wishbones, coil springs and stabilizer bar
Suspension, rearIndependent, multilink, coil springs and stabilizer bar
Steering typeSpeed-proportional power steering
Steering ratio (x:1)14.7:1
Tire brandBridgestone
Tire modelPotenza RE050A
Tire typeSummer
Tire size, frontP225/50R18 W
Tire size, rearP245/45R18 W
Wheel size18-by-8.5 inches front -- 18-by-9 inches rear
Wheel materialAlloy
Brakes, frontVentilated disc
Brakes, rear13.8-by-0.8-inch ventilated disc

Track Test Results

0-45 mph (sec.)3.5
0-60 mph (sec.)5.4
0-75 mph (sec.)7.7
1/4-mile (sec. @ mph)13.7 @ 102.8
0-60 with 1 foot of rollout (sec.)5.2
Braking, 30-0 mph (ft.)27
60-0 mph (ft.)106
Slalom, 6 x 100 ft. (mph)69.2
Skid pad, 200-ft. diameter (lateral g)0.91
Sound level @ idle (dB)42.6
@ Full throttle (dB)77.6
@ 70 mph cruise (dB)68.3

Test Driver Ratings & Comments

Acceleration commentsThe "new" engine doesn't feel or sound as taxed as the 3.5 did; revs more freely and breathes better. Easy to modulate wheelspin with the throttle. Upshifts were pretty harsh in "S" and it even scratched a 1-2 upshift.
Braking ratingExcellent
Braking commentsFirst stop was amazing, but subsequent stops were longer due to a very, very slight hop/dip in the pavement that went ignored during the first stop. Firm pedal, but still offers good feel. Brakes don't get much better than this for sport sedans. Zero fade.
Handling ratingExcellent
Handling commentsSkid pad: Able to do that delicate dance between under- and oversteer with a noticeably generous slip angle. Classic (and well-sorted) RWD behavior. Great steering feel, too. Slalom: Excellent delicacy in steering as limits are approached (feels too heavy at low speeds). Good ability to rotate with throttle manipulation, pivoting about the rearview mirror. You need quick hands for a fast run.

Testing Conditions

Elevation (ft.)1,121
Temperature (°F)76.2
Wind (mph, direction)2.0 mph Southwest

Fuel Consumption

EPA fuel economy (mpg)18 city/26 highway
Edmunds observed (mpg)17.3
Fuel tank capacity (U.S. gal.)20.0

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)3,590
Curb weight, as tested (lbs.)3,704
Weight distribution, as tested, f/r (%)53.0/47.0
Length (in.)187.0
Width (in.)69.8
Height (in.)57.2
Wheelbase (in.)112.2
Track, front (in.)59.8
Track, rear (in.)60.2
Turning circle (ft.)35.4
Legroom, front (in.)43.9
Legroom, rear (in.)34.7
Headroom, front (in.)39.1
Headroom, rear (in.)37.2
Shoulder room, front (in.)55.6
Shoulder room, rear (in.)55.2
Seating capacity5
Cargo volume (cu-ft)13.5
Max. cargo volume, seats folded (cu-ft)13.5


Bumper-to-bumper4 years/60,000 miles
Powertrain6 years/70,000 miles
Corrosion7 years/Unlimited miles
Roadside assistance4 years/60,000 miles
Free scheduled maintenanceNot available


Front airbagsStandard
Side airbagsStandard dual front
Head airbagsStandard front and rear
Knee airbagsNot available
Antilock brakes4-wheel ABS
Electronic brake enhancementsBraking assist, electronic brakeforce distribution
Traction controlStandard
Stability controlStandard
Tire-pressure monitoring systemTire-pressure monitoring
Emergency assistance systemOptional
NHTSA crash test, driver5 stars
NHTSA crash test, passenger4 stars
NHTSA crash test, side front5 stars
NHTSA crash test, side rear5 stars
NHTSA rollover resistance5 stars

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