Infiniti revamps its lowest-priced sedan for 2007, giving it more power and new styling inside and out. The coupe version of the G35 continues in its 2003-2006 form for '07. Both the G35 sedan and coupe have rear-wheel drive; the sedan is also available as the all-wheel drive G35x. All use a 3.5-liter V6 and a 5-speed automatic transmission or 6-speed manual. Sedans have 306 hp, up from a top of 298 in the '06s. Coupes have 293 hp with manual transmission, 275 hp with automatic. The G35x comes only with automatic transmission. Its AWD includes a Snow Mode that locks in a 50/50 front/rear power split.

Sedans offer base, Journey, G35x, and Sport models. The coupe comes in a single trim level. All have ABS, traction/antiskid control, front side airbags, and curtain side airbags; the coupe's curtain bags cover front seats only. Standard features include leather upholstery and bi-xenon headlights. A limited-slip differential and sport suspension are included with Sport sedans and manual-transmission coupes; they're optional for automatic-transmission coupes. Sport sedans and coupes with sport suspension offer versions of Infiniti's active steer system designed to improve handling. The sedan's Navigation Package has a navigation system, voice recognition, and a 9.5-gigabyte hard drive for storing music files. Navigation is a stand-alone coupe option. Keyless entry/starting is standard on all but manual-transmission coupes.