When researching the power output of the Infiniti G37, the search results often present conflicting numbers. Understanding the true horsepower of a G37 requires looking at the specific model year and trim level, as the figures evolved over time. For the purpose of clarity, the core answer centers on the naturally aspirated V6 engine that defined the car's performance identity.
The G37's Foundational Powerplant
The heart of the original G37, produced from 2007 to 2014, is the 3.7-liter VQ37VHR V6 engine. This power unit was a masterpiece of engineering for its era, utilizing advanced features like continuous valve timing control to deliver a smooth and linear power curve. Unlike modern turbocharged engines, the G37 relies on natural aspiration, which provides a more predictable throttle response and a high-revving nature that enthusiasts appreciate.
Horsepower and Torque Specifications
For the majority of the G37 sedan and coupe production run, the output remained consistent. The engine produces 328 horsepower at 7,000 rpm and 270 pound-feet of torque at 5,200 rpm. These figures are realized in the standard configuration, providing a balance of daily drivability and spirited performance that became the benchmark for the luxury sports sedan segment.
Performance Variants and Special Editions
While the base model was highly competent, Infiniti recognized the desire for greater performance. The G37 saw the introduction of several high-performance variants that significantly increased the horsepower figure. These models were designed to offer a more aggressive driving experience and stood out in the lineup.
G37 Coupe Sport: This trim level featured a more aggressive suspension setup and styling cues, maintaining the standard 328 hp while focusing on handling.
G37 Sedan Sport: Similar to the coupe, the Sport sedan offered enhanced dynamics without altering the core power output.
G37 Convertible: The premium of the convertible did not come with a power penalty, retaining the 328 hp rating of the coupe.
G37 Special Edition (2011): Released to clear out inventory, this version offered unique aesthetics and the standard performance.
The G37S: The Peak of G37 Performance
The true performance flagship of the G37 lineage was the G37S. Available in both coupe and sedan forms, this model represented the zenith of the platform's capabilities. It was equipped with a supercharged version of the 3.7-liter V6, a significant departure from the naturally aspirated norm.
The addition of the Garrett turbocharger dramatically increased the breathing efficiency of the engine. This resulted in a substantial jump in power, pushing the output to 420 horsepower and 400 pound-feet of torque. This surge transformed the G37S from a comfortable cruiser into a genuine performance machine, capable of competing directly with German M Sport and AMG Line rivals.
Differentiating the G35 and G37
One common point of confusion is comparing the G35 to the G37. The G35 was the predecessor to the G37, and while they share a similar chassis and design language, their power outputs differ. The G35, produced from 2003 to 2006, utilized a 3.5-liter V6 that produced 280 horsepower. The leap to the 3.7-liter engine in the G37 added 48 horsepower, making the G37 a noticeably quicker car despite the similar design language.
