2012 INFINITI G37 Sedan Review

Consumer Reviews
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2018
The Car Connection
2018
The Car Connection

The Car Connection Expert Review

Bengt Halvorson Bengt Halvorson Deputy Editor
February 17, 2012

Forget that the 2012 Infiniti G Sedans are somewhat practical four-door designs; they can provide all the sensory thrills and dynamic satisfaction of full-fledged sports cars.

The longtime standard-bearer among compact sport sedans remains the BMW 3-Series; but one of the other models that enthusiasts should put on their shortlist--and might actually end up liking better--is the Infiniti G37 Sedan. With excellent steering, dynamics, and poise, along with strong powertrain performance from its 328-horsepower V-6 and six- and seven-speed transmissions, the G37 can provide a sense of satisfaction that's usually relegated to track-ready sports cars--while providing enough practicality to pinch-hit for family duty.

With its coupe-like profile, the G37 remains one of the best-looking sport sedans, in any case. With clean sheetmetal and neat proportions, it follows a gently contoured look yet has an aggressive form. The new G25, which was introduced last year, is nearly identical from the outside, save some badging differences. Inside, both have a cockpit layout that's way more sports-car-influenced than other German sport sedans, with a low seating position and low center console between contoured bucket seats.

The 2012 Infiniti G37 is one of the most responsive, communicative, and fun-to-drive sport sedans in its class. Infiniti's 3.7-liter V-6 is a little too raucous for some luxury-performance tastes--and not nearly as smooth as BMW's excellent turbocharged six--but it has enough muscle to satisfy rabid performance enthusiasts. A base G25 model gets a 218-hp, 2.5-liter V-6 that's smooth, by most accounts, but doesn't give nearly as strong of a performance kick. Shift quality with the seven-speed automatic transmission in the G37 Sedan (the only transmission in the G25) is somewhat lumpy and indecisive in gentle driving, but it becomes snappy and smooth when accelerating hard. That said, the G is also quite possibly the best-handling sport sedan, price no object. Even on less-than-perfect surfaces, the suspension is hard to fluster and brakes are stout. In particular, the G sedans manage to get steering feel just right; the quick-ratio system unwinds smoothly, loads evenly, and transmits some surface feedback, as a good sport sedan should. 

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As much as performance and dynamics are a strength for the Infiniti G Sedans, their seating, cabin space, and refinement in general are all weak links. The G Sedan's interior feels sporty and premium but not at all lavish. Fit and finish are good, but there's a lot of noise, vibration, and coarseness, from the road and from the engine. The G Sedan rides more like a sport coupe, too, jittery but not downright jarring.

In addition to the three models of the 2012 Infiniti G37—Journey, Sport, and G37x AWD—the G25 is offered in Base, Journey, and G25x guises. With the G25 you drop 110 hp and lots of torque, but not much else. Across either model, standard equipment includes leather upholstery, power front seats, automatic climate control, a six-speaker audio system, and XM satellite radio. Journey models add Bluetooth, a rearview monitor, heated seats and mirrors, and dual-zone climate control. Adaptive Front Lighting and the Intelligent Cruise Control are optional and include a Preview Braking safety feature. An audiophile Infiniti Studio on Wheels system by Bose is optional, as is an optional next-generation hard-drive-based navigation system with higher-resolution screen, Zagat restaurant ratings and reviews, XM Weather and XM NavTraffic, and live rerouting.

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2012 INFINITI G37 Sedan

Styling

The 2012 G37 and G25 sedans are dashing, smoothly contoured, and universally good-looking.

With its coupe-like profile, the 2012 Infiniti G37 remains one of the best-looking sport sedans--even though it is now one of the older designs in its class.

All the G sedans have a gently contoured look yet an aggressive form, with clean sheetmetal and neat proportions. The new G25, which was introduced last year, is nearly identical from the outside, save some badging differences. The coupelike profile and smooth contoured look is a pleasant departure from the lined sheetmetal in a number of other models, and it all converges in what most will agree is a sporty stance.

Inside, both have a cockpit layout that's way more sports-car-influenced than other German sport sedans, with a low seating position and low center console between contoured bucket seats. Top and center, a screen (and supplemental controls beneath) accesses audio and climate functions. A strong beltline wraps around to the doors, while big, round dials in a hooded gauge cluster set a sporty tone.

For 2012, there's a new Sport Appearance Edition package, which blacks out the grille (among other changes) to bring a somewhat different look. Color combinations have also been revised for the rest of the line.

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2012 INFINITI G37 Sedan

Performance

The 2011 Infiniti G37 delivers top-notch performance that should satisfy the most demanding enthusiasts.

The 2012 Infiniti G37 is one of the most responsive, communicative, and fun-to-drive sport sedans in its class. With a near-ideal weight distribution, a well-tuned suspension, and steering that even the most demanding enthusiasts will like, there's a lot to love here from a driver's perspective.

Infiniti's 3.7-liter V-6 is a little too raucous for some luxury-performance tastes--and not nearly as smooth as BMW's excellent turbocharged six--but it has enough muscle to satisfy rabid performance enthusiasts. A base G25 model gets a 218-hp, 2.5-liter V-6 that's smooth, by most accounts, but doesn't give nearly as strong of a performance kick. Shift quality with the seven-speed automatic transmission in the G37 Sedan (the only transmission in the G25) is somewhat lumpy and indecisive in gentle driving, but it becomes snappy and smooth when accelerating hard; magnesium paddle-shifters and a smart throttle blip for downshifts when driving hard makes the combination all the more satisfying--though the six-speed manual is great as well.

Price no object, the G is also quite possibly the best-handling sport sedan. Even on less-than-perfect surfaces, the suspension is hard to fluster and brakes are stout. In particular, the G sedans manage to get steering feel just right; the quick-ratio system unwinds smoothly, loads evenly, and transmits some surface feedback, as a good sport sedan should.

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2012 INFINITI G37 Sedan

Comfort & Quality

Some will like the 2012 Infiniti G sedans' snug, almost coupe-like feel; but it's not a good pick for those who want a quiet, refined luxury sedan.

As much as performance and dynamics are a strength for the Infiniti G Sedans, their seating, cabin space, and refinement in general are all weak links.

The G Sedan's interior feels sporty and premium but not at all lavish. That's not to say the seats aren't bad; they deliver good support and are nicely contoured (perhaps a little snug for some). In back there's adequate legroom, though in keeping with the almost coupe-like roofline, headroom is somewhat scarce and it's probably not the sort of place where adults will want to be spending much time.

Trunk space is quite good. But while many other sedans have fold forward rear seatbacks, there's no such feature here; instead, you do get a ski pass-through.

Fit and finish are good, but there's a lot of noise, vibration, and coarseness, from the road and from the engine. The G Sedan rides more like a sport coupe, too, jittery but not downright jarring.

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2012 INFINITI G37 Sedan

Safety

The 2012 Infiniti G25 and G37 Sedan models have the promise of good accident avoidance and solid protection, but their safety ratings aren't perfect.

There are plenty of safety features to build confidence in the 2012 Infiniti G sedans' occupant protection--in addition to its excellent handling and accident-avoidance ability--but its crash-test ratings haven't altogether been at the top of the class.

Electronic stability control is standard on the G37, along with anti-lock brakes with Brake Assist, front side airbags, and side-curtain airbags that cover front and rear outboard occupants.

The 2012 G37 and G25 Sedans get top 'good' scores for frontal and side impact from the Insurance Institute for Highway Safety (IIHS), but in the relatively new roof-strength test it achieves a less praise-worthy 'acceptable' score; and in the seat-based rear impact test it's rated only 'marginal.'

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2012 INFINITI G37 Sedan

Features

Whether performance or convenience is the priority, you'll get a solid roster of features in the 2012 Infiniti G Sedans.

In addition to the three models of the 2012 Infiniti G37—Journey, Sport, and G37x AWD—the G25 is offered in Base, Journey, and G25x guises. Get the G25 instead, and you'll need to make do with 110 horsepower less, and no chance of a manual gearbox; but otherwise, the feature sets are about the same.

Across either model, standard equipment includes leather upholstery, power front seats, automatic climate control, a six-speaker audio system, and XM satellite radio. Journey models add Bluetooth, a rearview monitor, heated seats and mirrors, and dual-zone climate control.

Infiniti G37 Sedan Sport models are focused toward the most demanding enthusiast customers—and probably those who plan track time—so they include a Viscous Limited Slip Differential, in addition to a host of track-worthy upgrades like larger vented disc brakes, sport steering gear, W-rated performance tires, and more aggressively bolstered sport seats with active head restraints and thigh extensions.

Adaptive Front Lighting and the Intelligent Cruise Control are optional (provided you move up to the Journey model) and include a Preview Braking safety feature. An audiophile Infiniti Studio on Wheels system by Bose is optional, as is an optional next-generation hard-drive-based navigation system with higher-resolution screen, Zagat restaurant ratings and reviews, XM Weather and XM NavTraffic, and live rerouting.

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2012 INFINITI G37 Sedan

Fuel Economy

Even considering the new G25 model introduced last year, the 2012 Infiniti G sedans aren't all that fuel-efficient.

The G25 and G37 are first and foremost sport sedans, with traditional underpinnings that prioritize their high-performance driving feel; so it makes sense that they're only about par in this class for fuel-efficiency.

Last year, Infiniti added G25 models to the lineup; while they don't deliver the straight-line performance of the G37 models, they do eke out an extra mile or two per gallon. For either model (the G25 is automatic-only), the seven-speed automatic gets good numbers; G37 models with the manual gearbox are actually the least fuel-efficient, at 17/25.

The somewhat larger M Sedans are offered in a hybrid model that's far more fuel-efficient, without giving up too much performance. The M Hybrid carries EPA ratings of 27 mpg city, 32 highway.

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November 20, 2015
2012 INFINITI G37 Sedan 4-Door x Limited Edition AWD

Best 4 door Sedan I have ever owned!

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I purchased this used with very low miles and have to say the original owner took very good care of the car. I have researched these cars over the past few years and finally made my decision based on the... + More »
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May 13, 2015
2012 INFINITI G37 Sedan 4-Door x Sport Appearance Edition AWD

Sweet Ride

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I previously had a 2008 Infiniti G35X which I purchased used in 2008. I wanted something different so I purchased a used 2011 Lexus ES in 2012 bad mistake, didn't realize until it was to late this wasn't an... + More »
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