The G37 coupe features a larger displacement 3.7 liter V6 good for 330 hp and 270 lbs. of torque, a considerable upgrade over the previous G35s 298.   Along with utilising a larger displacement than the previous 3.5-litre powerplant, the VVEL (Variable Valve Event and Lift) system combines hydraulic-controlled variable valve timing and electronically controlled variable valve lift on the intake side, helping to improve not only performance and response but also emissions and fuel efficiency. Overall vehicle fuel economy improvements are estimated to be nearly one mpg better than the G35 Sedan and nearly two mpg better than the previous generation G35 Coupe. 

The G37 Coupe's enhanced platform and chassis also includes an available advanced 4-Wheel Active Steer system (4WAS), which helps improve vehicle handling performance by adjusting both the front steering gear ratios and the rear suspension geometry according to steering input and vehicle speed. Braking and handling is targeted to be among the best in the luxury sport coupe class.  Transmission options include a 5 speed automatic with paddles and a new refined close ratio 6 speed manual for those who want to get the most out of the G37s 7500 rpm redline.

A Rear Viscous Limited-Slip Differential (VLSD) is available on G37 Coupe Journey with Sport Package and G37 Coupe Sport 6MT model.  A 36 percent stiffer chasis and lowered ride height also help to improve handling while standard vehicle dynamic stability control helps keep you on track if you manage to exceed its limits.    The G37 also features new 10-spoke 19x8.5-inch front wheels and 225/45WR19 front tires and 19x9-inch rear wheels with 245/40WR19 rear tyres (available on G37 Coupe Journey, standard on G37 Journey with Sport Package and G37 Coupe Sport 6MT model)