The G35 is a great bargain compared to other sport cars. I considered the IS350 and BMW 330. The 6 speed manual has a short throw that is fun to drive. I recommend the black interior, it looks better than the light colors. Bluetooth and Navigation are great options to consider. Other buyer are right on regarding the exterior looks - others will admire your car.
Extra power with the six speed is addictive. The memory seats and power adjustable steering wheel/column are great additions. The six speed is so much more enjoyable that the AT. I recommend this vehicle. The Bluetooth is really nice, but....see below
The road noise of the sport suspension is a little loud. The road noise effects the ability of the Bluetooth to pick up voice commands. The Bose system needs improvement, please add a sub-woofer option. I would rate the sound system has the weakest component of the vehicle.