Coupes are generally meant to be performance machines, and the 2008 Infiniti G37 meets all the criteria of a true performance car. From its sweet V-6 engine to its responsive handling, the Infiniti G37 is ready to be pushed to the limit.
The 2008 Infiniti G37 comes with just one engine option, and it has been improved versus the powerplant on the outgoing model. Reviews read by TheCarConnection.com are suitably impressed with the engine, which Car and Driver says is "a new 3.7-liter version of Nissan's venerable VQ V-6 engine," and on the Infiniti G37, the "power is up 24 horsepower at 330, and the torque output increases two pound-feet to 270." ForbesAutos reports "acceleration was strong and smooth" during their test, and "the engine makes great music as it happily revs to the red line." Edmunds reviewers push the Infiniti 2008 G37 to the limit and find that a "G37 Journey accelerated to 60 mph in 5.5 seconds, while a Sport 6MT coupe pulled a nearly identical 5.4 seconds to 60 mph." When compared to the outgoing G35 sedan and its 3.5-liter engine, the Infiniti 2008 G37's extra power is "certainly felt, especially when accelerating out of turns," declares Motor Trend.
Putting the extra horsepower to the road on the Infiniti 2008 G37 is one of two available transmissions. Edmunds notes that "the base and Journey trim levels come standard with a five-speed automatic transmission with paddle-shift automanual control, while the Sport 6MT features a six-speed manual." Reviewers are impressed with both transmissions, and ForbesAutos proclaims "both gearboxes work precisely and are well matched to the potent engine." Automobile is comfortable enough to take sides, though, and they state that their "choice is distinctly for the 6MT," where the "tail-out antics and fun factor outweigh the coarseness" that they feel comes with the manual transmission.
Despite the increase in power output, Cars.com finds that "Infiniti estimates that the G37's engine actually delivers around 1 mpg better gas mileage than the 3.5-liter V-6 in the G35." The actual EPA estimates for a 2008 Infiniti G37 with the manual transmission are 17 mpg in the city and 26 mpg on the highway, while the automatic transmission boosts city numbers to 18 mpg but drops to 24 mpg on the highway.
While some vehicles make a point of their blistering straight-line acceleration, the 2008 Infiniti G37 instead focuses on handling and the overall driving experience, which is impeccable. Kelley Blue Book affirms that "performance-focused drivers hoping for a more sophisticated, premium-badged Nissan Z will find satisfaction in" the Infiniti G37. Other reviewers agree, and Motor Trend says "through all but the most aggressive curves, the car stays as flat as the Arizona desert." Car and Driver points out that, even with the sport package, "the chassis soaks up road bumps without the slightest chatter, and the steering remains precise and communicative." While a "four-wheel active steering (4WAS)" system is available, according to Edmunds, they recommend sticking "with the standard steering setup," as the 4WAS system "fails to weight up properly in the corners and provides limited feedback." When it comes time to stop the Infiniti 2008 G37, Motor Trend finds that the brakes are "stellar -- exhibiting excellent response and pedal feel and no fade."