In most conditions, the G37 is faster off the line than the M37, thanks to a lighter, sport-oriented chassis. Both cars use a 3.7-liter V6 and produce around 330 horsepower, but the M37’s extra weight and luxury focus generally slow it down. Exact numbers vary by model year, drivetrain, and transmission option.
Powertrain fundamentals
Shared engine specs
Across the M37 and G37, Infiniti used a 3.7-liter V6 that makes about 330 horsepower and roughly 270 lb-ft of torque. Most trims pair it with an automatic transmission, with rear-wheel drive as standard and all-wheel-drive variants available in certain years and configurations.
Weight and platform
The G37 is typically lighter and closer to a sport sedan in tuning, while the M37 is a larger, more luxurious four-door with more insulation and interior space. Those weight differences influence acceleration and how the cars respond to throttle input.
Real-world performance figures
To illustrate how they compare in practice, here are commonly reported ranges from road tests. Figures can vary by year, drivetrain, and equipment.
- G37 sedan 0-60 mph: roughly 5.5–6.0 seconds; G37 with all-wheel drive is usually a touch slower, depending on conditions.
- M37 0-60 mph: roughly 6.0–6.5 seconds, depending on drivetrain and options.
Bottom line: in straight-line acceleration, the G37 generally posts quicker times than the M37 due to its lighter weight and sportier setup.
Handling and daily driving character
Driving dynamics
The G37 typically offers sharper steering, a firmer ride, and more responsive handling aimed at enthusiasts. The M37 prioritizes a refined, quiet, and comfortable ride with ample interior space, which can trade a little bite for luxury and serenity on long trips.
Bottom line
Is the M37 faster than the G37? Not in most circumstances. The G37 is usually faster in acceleration and more agile, while the M37 emphasizes smooth power delivery and a plush, upscale experience. Your choice depends on whether you value brisk acceleration or refined comfort.
Summary
Across its model years, the G37 generally outpaces the M37 in acceleration due to a lighter chassis and sport-tuned dynamics, even though both share a similar 3.7-liter V6. If speed is your priority, the G37 tends to be the better pick; if you value luxury comfort and interior space, the M37 remains a strong alternative. Always check the specific car’s weight, drivetrain, and option packages for the exact performance figures.