Ford Mustang GT S197 Mustang GT S197 VS Nissan Infiniti G37 Infiniti G37

On any given track day, the Ford Mustang GT S197 and the Nissan Infiniti G37 embody two distinct schools of rear-drive performance—one steeped in the tradition of American muscle, the other a product of Nissan's pursuit of refined, balanced grand touring. Their lap times tell a clear story, but to understand these cars, you have to look past the stopwatch and into the DNA of their chassis, powertrains, and the experiences they offer at the limit.

With its 5.0L Coyote V8, the S197 Mustang GT’s character is defined by a tidal wave of torque, a broad, accessible powerband, and the unmistakable presence of a naturally aspirated eight-cylinder. This is a car that feels alive at any rpm, responding instantly to throttle with a deep rumble and rear-end urgency. The Mustang’s live rear axle—until the very end of the S197 era—demands respect on corner exit, especially as power loads up through the chassis. Yet, with the right setup, as seen in Tom Thronson’s medium-mod example, it becomes a surprisingly precise tool. At Auto Club Speedway - Road Course, a well-prepped Mustang stopped the clock at a 1:48.001, besting the G37 by over 25 seconds. That margin isn’t just about power; it’s about the Mustang’s ability to exploit straight-line sections, brake late with confidence, and put its mass to work through high-speed sweepers—traits baked in by Ford’s relentless evolution of the platform via motorsport feedback and aftermarket support.

The G37, in contrast, approaches the track as a well-mannered athlete rather than a brawler. Its 3.7L VQ37VHR V6 revs eagerly and sounds sharp, but with 328 PS and less torque, it’s always playing catch-up on circuits where exits and straights dominate. Where the Mustang bludgeons, the G37 tries to finesse. Its independent rear suspension gives it a composure over mid-corner bumps and transitions that feels distinctly Japanese—refined, predictable, never intimidating. On tighter circuits or those with frequent direction changes, this composure can pay dividends. At Sanair Super Speedway - Road Course #5, a lightly tuned G37 edged out a Mustang by a razor-thin 0.09s, showing that on short, technical layouts, its balance and quick steering can close the gap—if not quite overturn the fundamental power deficit.

But the Mustang’s dominance reasserts itself on traditional road courses. At Willow Springs Raceway - Streets, the S197’s 1:21.872 lap time was over six seconds clear of the G37, reinforcing the theme: the Ford’s torque, superior aftermarket chassis tuning options, and ability to stand big on sticky tires make it a devastating weapon in experienced hands. The Mustang is built for the committed—the kind of driver who isn’t afraid to manage mass on the brakes, rotate with the throttle, and use every inch of the track. Its trade-off is approachability; push too hard, and the car will remind you that physics still matter, especially as the live axle gets lively over curbing or under trail braking.

The G37, meanwhile, flatters the patient. Its softer limits and progressive breakaway make it a forgiving partner for those learning the ropes or favoring measured, flowing laps. It’s less likely to bite the unwary, and its road manners translate to a less fatiguing track experience for those not chasing tenths. The trade-off is ceiling: even with modifications, the G37 rarely threatens the Mustang on outright pace except on the shortest or most technical tracks, as seen at Driveway Austin Motorsports - Fiorano L1 Course, where it posted a 37.600 to the Mustang’s 39.200.

In the end, the S197 Mustang GT is the archetype for those who want to wrestle a car to the front, leveraging brute force and a deep pool of chassis upgrades. The G37 is the thinking driver’s alternative—subtler, easier to trust, but ultimately capped by its gentler engine and more comfort-oriented philosophy. For drivers who crave drama and the satisfaction of mastering a demanding platform, the Mustang is unmatched. For those seeking a more forgiving learning partner, or a car that’s as happy on the commute as it is on track, the G37 remains a quietly competent companion. The stopwatch may not always be kind to the Infiniti, but for a certain kind of driver, its balance tells a different story.