| Vehicle | |
|---|---|
| Model year | 2011 |
| Make | Infiniti |
| Model | M37 |
| Style | 4dr Sedan (3.7L 6cyl 7A) |
| Base MSRP | $47,115 |
| Options on test vehicle | Deluxe Touring Package ($3,800 — includes 16-speaker Bose audio system, Forest Air system, Semi-Aniline quilted leather, Japanese White Ash wood trim, soft double-stitched meter hood, suedelike headliner, power rear sunshade); Premium Package ($3,350 — includes hard-drive navigation system, real-time traffic and weather, color touchscreen, voice controls, heated steering wheel, heated and cooled front seats, 10-speaker Bose stereo [replaced by Deluxe Touring's 16-speaker system], Bluetooth audio streaming, 9.3GB of digital music storage); Technology Package ($3,000 — includes Eco pedal, adaptive cruise control, blind-spot warning system, blind-spot intervention system, distance control assist, intelligent brake assist, forward collision warning, front pre-crash seatbelts, active trace control, adaptive headlights); 18-Inch Wheels ($1,650); Illuminated Kick Plates ($350); Trunk Mat, Net and First Aid Kit ($195). |
| As-tested MSRP | $59,460 |
| Drivetrain | |
|---|---|
| Drive type | Longitudinal, front midengine, rear-wheel drive |
| Engine type | Naturally aspirated, port-injected, V6, gasoline |
| Displacement (cc/cu-in) | 3,696cc (226cu-in) |
| Block/head material | Aluminum/aluminum |
| Valvetrain | DOHC, 4 valves/cylinder variable intake + exhaust-valve timing and lift |
| Compression ratio (x:1) | 11.0 |
| Redline (rpm) | 7,500 |
| Horsepower (hp @ rpm) | 330 @ 7,000 |
| Torque (lb-ft @ rpm) | 270 @ 5,200 |
| Fuel type | Premium unleaded (recommended) |
| Transmission and axle ratios (x:1) | 1st = 4.783; 2nd = 3.103; 3rd = 1.984, 4th = 1.371, 5th = 1.000; 6th = 0.871, 7th = 0.776, R = 3.859 |
| Chassis | |
|---|---|
| Suspension, front | Independent double-wishbones, coil springs, twin-tube dampers, stabilizer bar |
| Suspension, rear | Independent multilink, coil springs, twin-tube dampers, stabilizer bar |
| Steering type | Hydraulic-assist, speed-proportional, rack-and-pinion power steering |
| Steering ratio (x:1) | 16.9 |
| Tire brand | Michelin |
| Tire model | Primacy MXM4 |
| Tire type | Asymmetrical all-season, performance (33 psi cold front; 33 psi cold rear) |
| Tire size, front | 245/50R18 96V |
| Tire size, rear | 245/50R18 96V |
| Wheel size, front | 18-by-8.0 inches |
| Wheel size, rear | 18-by-8.0 inches |
| Wheel size | 18-by-8.0 inches front and rear |
| Wheel material | Cast aluminum |
| Brakes, front | 12.6-in one-piece ventilated steel discs with 2-piston sliding calipers |
| Brakes, rear | 12.1-in one-piece ventilated steel discs with 1-piston sliding calipers |
| Track Test Results | |
|---|---|
| Acceleration, 0-30 mph (sec.) | 2.3 |
| 0-45 mph (sec.) | 3.9 |
| 0-60 mph (sec.) | 5.9 |
| 0-75 mph (sec.) | 8.4 |
| 1/4-mile (sec. @ mph) | 14.1 @ 99.5 |
| 0-60 with 1 foot of rollout (sec.) | 5.6 |
| Braking, 30-0 mph (ft.) | 29 |
| 60-0 mph (ft.) | 115 |
| Slalom, 6 x 100 ft. (mph) | 63.1 |
| Skid pad, 200-ft. diameter (lateral g) | 0.84 |
| Sound level @ idle (dB) | 42.5 |
| @ Full throttle (dB) | 76.9 |
| @ 70 mph cruise (dB) | 68.6 |
| Test Driver Ratings & Comments | |
|---|---|
| Acceleration comments | Times improved with pedal overlap and resulting slight wheelspin. Also noticed upshifts in Drive were occurring about 500 rpm shy of redline so best run was with manual shifting. Upshifts were still quick and smooth. Engine/exhaust sounds are isolated but present. All runs (but first, default run) were in Sport on rotary selector. |
| Braking comments | Very good. Strong brakes, medium-firm pedal, quick-cycle ABS and very consistent results that also showed virtually no signs of fading. |
| Handling comments | Good. Skid pad: With VSC off, the M37 felt very well balanced/tuned to deliver a neutral attitude; right on the cusp of kicking the tail out at will. Nice steering weight and tactile info. With VSC on, throttle bleeds off to drop speed slightly, and either ON/OFF, the clockwise direction (driver outboard) was noticeably slower. Slalom: VSC is truly off, but the chest-flattening seatbelt tensioners were a bit of a welcome surprise. Crisp initial turn-in lasts just a cone or two when the M37 begins to understeer. I could induce rotation with the throttle, but by that time, the tires had gone a little "greezy" and diminishing returns had set in. This car ran out of tire before it ran out of talent. |
| Testing Conditions | |
|---|---|
| Elevation (ft.) | 1,121 |
| Wind (mph, direction) | 3.8, headwind |
| Fuel Consumption | |
|---|---|
| EPA fuel economy (mpg) | 18 city/26 highway/21 combined |
| Edmunds observed (mpg) | 16 worst/25 best/22 average over 1,418 miles |
| Fuel tank capacity (U.S. gal.) | 20.0 |
| Audio and Advanced Technology | |
|---|---|
| Stereo description | Bose studio surround sound system with digital 5.1-channel decoding, 16-speakers |
| iPod/digital media compatibility | Standard iPod via USB jack |
| Satellite radio | Standard XM |
| Hard-drive music storage capacity (Gb) | Optional 9.3-Gb music storage capacity |
| Rear seat video and entertainment | Not available |
| Navigation system | Optional Hard Drive with traffic 8.0 display screen (measured diagonally) |
| Telematics (OnStar, etc.) | Not available |
| Smart entry/Start | Standard ignition + doors |
| Parking aids | Standard back-up camera |
| Blind-spot detection | Optional |
| Adaptive cruise control | Optional (includes Distance control assist; Intelligent brake assist with forward collision warning) |
| Lane-departure monitoring | Optional departure warning w/active correction |
| Night Vision | Not available |
| Dimensions & Capacities | |
|---|---|
| Curb weight, mfr. claim (lbs.) | 3,858 |
| Curb weight, as tested (lbs.) | 3,895 |
| Weight distribution, as tested, f/r (%) | 54/46 |
| Length (in.) | 194.7 |
| Width (in.) | 71.1 |
| Height (in.) | 59.1 |
| Wheelbase (in.) | 114.2 |
| Track, front (in.) | 62.0 |
| Track, rear (in.) | 61.8 |
| Turning circle (ft.) | 36.7 |
| Legroom, front (in.) | 44.0 |
| Legroom, rear (in.) | 36.2 |
| Headroom, front (in.) | 39.1 |
| Headroom, rear (in.) | 37.7 |
| Shoulder room, front (in.) | 58.4 |
| Shoulder room, rear (in.) | 56.7 |
| Seating capacity | 5 |
| Cargo volume (cu-ft) | 14.9 |
| Warranty | |
|---|---|
| Bumper-to-bumper | 4 years/60,000 miles |
| Powertrain | 6 years/70,000 miles |
| Corrosion | 7 years/Unlimited miles |
| Roadside assistance | 4 years/60,000 miles |
| Free scheduled maintenance | Not available |
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