When it comes to high-performance sedans, the Infiniti G37 often slips under the radar. Launched in 2008, this powerhouse delivered a punchy 328 horsepower from its 3.7-liter V6 engine, offering a compelling alternative to pricier European sports sedans. Despite its impressive specs and luxurious interior, the G37 saw only modest sales, overshadowed by dominant competitors. Today, however, this sleeper sedan is gaining a growing enthusiast following, with used models often available for under $15,000.
A Rich Heritage in Performance Sedans
The Infiniti G37’s lineage can be traced back to the second-generation Infiniti G platform, introduced in 2008. This platform was shared with the Nissan Skyline, underscoring its Japanese engineering pedigree developed at Infiniti’s Yokohama design center. The G37 made its debut at the 2008 New York International Auto Show, where it was positioned as a direct rival to the BMW 335i, with a focus on balanced chassis tuning.
The G37’s VQ37VHR engine evolved from earlier V6 designs, incorporating variable valve timing for improved efficiency and power delivery. This engine was a testament to Infiniti’s commitment to performance and innovation, setting the stage for the G37’s impressive capabilities.
Powertrain Excellence Under the Hood
The G37’s 3.7-liter VQ37VHR V6 engine is a marvel of engineering, producing 328 horsepower at 7,000 rpm and 270 lb-ft of torque at 5,200 rpm. It came standard with a 6-speed manual transmission, with an optional 7-speed automatic transmission available for those who preferred it. The G37 also offered a choice between rear-wheel drive for purist handling and the available ATTESA E-TS all-wheel-drive system, which enhanced traction without sacrificing sportiness.
Performance metrics further underscore the G37’s sleeper status. According to a 2008 test by Car and Driver, the sedan could accelerate from 0-60 mph in just 5.2 seconds, demonstrating its impressive power and speed.
Stylish Yet Subtle Exterior Design
The G37’s exterior design is both stylish and subtle, with an aerodynamic body featuring a bold grille and 18-inch alloy wheels standard on base models. The interior is equally impressive, with leather-appointed seats, a 7-inch navigation screen, and a Bose audio system in higher trims, blending luxury with a driver-focused cockpit.
The G37’s sleeper aesthetics are perhaps best exemplified by the understated rear diffuser and quad exhaust tips on the Sport package, which hide its performance potential from casual observers. This subtle design approach allows the G37 to fly under the radar, adding to its appeal as a sleeper sedan.
Unmatched Driving Dynamics
The G37’s driving dynamics are another highlight, with a double-wishbone front suspension and multi-link rear setup tuned for precise cornering and minimal body roll. Reviewers and owners alike have praised the G37’s handling, with Motor Trend’s 2008 comparison lauding its “BMW-like agility at a fraction of the cost,” and noting that its steering response was sharper than the Lexus IS350.
Real-world examples further underscore the G37’s performance capabilities. On track days, the G37 has been known to outperform expectations on circuits like Laguna Seca, thanks to optional summer tires and Brembo brakes.
Value Proposition in a Crowded Market
When it comes to value, the G37 stands out in a crowded market. Used 2008-2013 G37 sedans now trade for $8,000-$20,000 on platforms like Autotrader, compared to $25,000+ for comparable BMW E90 335i models. The G37 also boasts above-average reliability ratings for its era, with fewer transmission issues than competitors like the Audi A4, according to Consumer Reports.
Enthusiasts often cite the G37 as “the best bang-for-buck sports sedan of the late 2000s” due to its low maintenance costs, which average around $500 annually. This combination of performance, luxury, and value makes the G37 a compelling choice for those in the market for a high-performance sedan.
Why It Fades into the Background
Despite its many strengths, the G37 has often been overlooked, due in part to marketing challenges. Infiniti’s limited U.S. advertising budget in 2008-2010, compared to BMW’s $500 million annual spend, resulted in lower brand awareness. Cultural perceptions also played a role, with reviewers noting the G37’s “Nissan badge stigma” despite its premium positioning.
Sales data further illustrates the G37’s sleeper status. After peaking at 25,000 units in 2009, U.S. sales dropped to 10,000 by 2013, a decline attributed to the recession and a shift toward crossovers. Despite these challenges, the G37’s enduring appeal and performance capabilities have helped it maintain a loyal following.
Enduring Appeal for Modern Enthusiasts
Today, the G37 continues to attract enthusiasts, with a robust aftermarket scene that includes modifications like superchargers from Stillen that can add 100+ horsepower. Clubs like the Infiniti G Owners of America provide a community for G37 owners to share their passion for this underrated sedan.
For those considering a used G37, it’s important to check for timing chain issues in pre-2010 V6 engines and to seek out low-mileage examples under 100,000 miles. As collector interest grows, well-maintained G37s have seen a 15% value increase since 2020, according to Hemmings Motor News, further underscoring the enduring appeal of this sleeper sedan.
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