The G35 sedan underwent a major revision for the 2007 model year. This 2nd generation front-mid (FM) platform underpinning the new G is shared in part with the Infiniti M and has several structural reinforcements around the engine and rear floor area. Along with three times more laser welding and 16 percent more spot welds than the old version, overall body stiffness was improved by 40 percent. Single-pivot lower control arms in front replace the 1st gen model's twin lower links. The G35x sedan uses an ATTESA E-TS all-wheel drive system.
Infiniti G35 Sedan
Along with these chassis refinements sport package equipped models get firmer rear shocks, bigger front brake calipers, and larger 13-inch (330 mm) rotors all around (up from 12.6/12.1-inch front/rear). Sport package equipped cars also get a viscous limited slip differential. An all-new Active Steering package can be ordered for sport package equipped models. It features a planetary gearset on the steering shaft (similar to BMW), that varies the steering ratio between 12.0:1 and 18.5:1. A rear-wheel steering system that induces up to one degree of rear steer is also included in this package. The Active Steering package includes even stiffer shocks than the sport package at all four corners and the ride has been repeatedly reported as being too stiff for most customers except the most "enthusiastic" drivers. Base and Journey model 17-inch (430 mm) tires bump up from 215s to 225s, while the 18-inch (460 mm) upgrade (included in sport or wheel package) with 225/50-ZR18 front and 245/45-ZR18 rear is now a size smaller in front and larger in back than the 1st gen model's all-around 235/45R18s.
The updated VQ35HR is more powerful (306 hp (228 kW) at 6,800 rpm and 268 ft·lbf (363 N·m) at 4,800 rpm), more fuel efficient, and more responsive than the previous VQ35DE. The "HR" stands for "High Revolution" or "High Response". A dual-path intake (two air cleaners, throttle bodies, etc.) lowers intake tract restriction by 18 percent and new equal-length exhaust manifolds lead into mufflers that are 25 percent freer flowing. The intake is said to benefit from a ram-air effect adding three horsepower at 60 mph. Electrically actuated variable valve timing is new on the exhaust cams which broadens the torque curve. The new engine block maintains the same bore and stroke, but the connecting rods were lengthened and the block deck was raised by 8.4 mm to reduce piston side-loads. 80% of the internal components have been strengthened or redesigned to handle the increased 7,500 rpm red line, along with the use of larger crank bearings with main bearing caps reinforced by a rigid ladder-type main cap girdle. With an increase in compression ratio from 10.3:1 to 10.6:1 these changes add 26 more horsepower. Torque is down 2 foot-pounds force (2.7 N·m) from the old DE engine (268 vs. 270). The engine now sits 15 mm lower in the chassis for a lower center of gravity.
Although the horsepower rating increases only 8 hp compared to the latest version of the previous "DE" engine, the real horsepower difference was much greater due to Nissan adopting the 2006 SAE hp measurement guidelines for horsepower ratings in 2007. According to Consumer Reports an Infiniti G35 Journey sedan with a 5-speed Automatic transmission can reach 0–60 mph (0–97 km/h) in 5.4 seconds, and the 1/4 mile (~400 m) 13.8 seconds. According to the also newly revised EPA guidelines, fuel economy is estimated at 17 mpg-US (14 L/100 km; 20 mpg-imp) in the city and 24 mpg-US (9.8 L/100 km; 29 mpg-imp) on the highway. Fuel economy is virtually identical between generations, with the second generation earning a 1-mile-per-US-gallon (0.43 km/L; 1.2 mpg-imp) edge in highway driving (both measured using EPA 2008 guidelines).
Second generation G35 performance: According to Motor Trend and Automobile Magazine, a previous model 2005 G35 6MT sedan reached 0-60 mph in 5.7 seconds and the 1/4 mile in 14.1 seconds. This gives the new 2nd gen G35 V36 sedan a solid 0.4 and 0.3 second performance advantage respectively. Five Speed automatics are on par with manual transmission cars from a performance perspective. In a 2008 Road & Track comparison test with the new 2008 Cadillac CTS a 5-speed automatic transmission equipped G35 sedan achieved a 0-60 time of 5.3 seconds, a 0-100 time of 13.1 seconds and a 1/4 mile time of 13.8 seconds at 102.9 mph (165.6 km/h). Generally a V36 G35 reaches 60 mph in the low 5 second range; 100 mph in around 13 seconds and runs the quarter mile in about 13.8 seconds. The 200 lbs. heavier all wheel drive versions are only approx. 0.3 seconds behind in each of these measurements.
Models (including the since 2009 G37):
* G35/G37 - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
* G35/G37 Journey - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
* G35x/G37x AWD - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW) 4WD
* G35/G37 Sport 6MT - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
In addition, a special edition of the G37 was entered into the SEMA Gran Turismo Awards in 2008.
The updated VQ35HR is more powerful (306 hp (228 kW) at 6,800 rpm and 268 ft·lbf (363 N·m) at 4,800 rpm), more fuel efficient, and more responsive than the previous VQ35DE. The "HR" stands for "High Revolution" or "High Response". A dual-path intake (two air cleaners, throttle bodies, etc.) lowers intake tract restriction by 18 percent and new equal-length exhaust manifolds lead into mufflers that are 25 percent freer flowing. The intake is said to benefit from a ram-air effect adding three horsepower at 60 mph. Electrically actuated variable valve timing is new on the exhaust cams which broadens the torque curve. The new engine block maintains the same bore and stroke, but the connecting rods were lengthened and the block deck was raised by 8.4 mm to reduce piston side-loads. 80% of the internal components have been strengthened or redesigned to handle the increased 7,500 rpm red line, along with the use of larger crank bearings with main bearing caps reinforced by a rigid ladder-type main cap girdle. With an increase in compression ratio from 10.3:1 to 10.6:1 these changes add 26 more horsepower. Torque is down 2 foot-pounds force (2.7 N·m) from the old DE engine (268 vs. 270). The engine now sits 15 mm lower in the chassis for a lower center of gravity.
Although the horsepower rating increases only 8 hp compared to the latest version of the previous "DE" engine, the real horsepower difference was much greater due to Nissan adopting the 2006 SAE hp measurement guidelines for horsepower ratings in 2007. According to Consumer Reports an Infiniti G35 Journey sedan with a 5-speed Automatic transmission can reach 0–60 mph (0–97 km/h) in 5.4 seconds, and the 1/4 mile (~400 m) 13.8 seconds. According to the also newly revised EPA guidelines, fuel economy is estimated at 17 mpg-US (14 L/100 km; 20 mpg-imp) in the city and 24 mpg-US (9.8 L/100 km; 29 mpg-imp) on the highway. Fuel economy is virtually identical between generations, with the second generation earning a 1-mile-per-US-gallon (0.43 km/L; 1.2 mpg-imp) edge in highway driving (both measured using EPA 2008 guidelines).
Second generation G35 performance: According to Motor Trend and Automobile Magazine, a previous model 2005 G35 6MT sedan reached 0-60 mph in 5.7 seconds and the 1/4 mile in 14.1 seconds. This gives the new 2nd gen G35 V36 sedan a solid 0.4 and 0.3 second performance advantage respectively. Five Speed automatics are on par with manual transmission cars from a performance perspective. In a 2008 Road & Track comparison test with the new 2008 Cadillac CTS a 5-speed automatic transmission equipped G35 sedan achieved a 0-60 time of 5.3 seconds, a 0-100 time of 13.1 seconds and a 1/4 mile time of 13.8 seconds at 102.9 mph (165.6 km/h). Generally a V36 G35 reaches 60 mph in the low 5 second range; 100 mph in around 13 seconds and runs the quarter mile in about 13.8 seconds. The 200 lbs. heavier all wheel drive versions are only approx. 0.3 seconds behind in each of these measurements.
Models (including the since 2009 G37):
* G35/G37 - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
* G35/G37 Journey - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
* G35x/G37x AWD - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW) 4WD
* G35/G37 Sport 6MT - 3.5/3.7 L V6, 306 hp (228 kW) / 328 hp (245 kW)
In addition, a special edition of the G37 was entered into the SEMA Gran Turismo Awards in 2008.
