what does the sport package, aero package, premium package add to the g35?You can\'t add packages retroactively - they are all installed at the factoryYou\'d be better off finding a more loaded G35 coupeHere are the details on the packages (and the other poster is incorrect - the Sport Tuned Suspension package was offered in 2005-2007): Sport-Tuned Suspension Package (Standard on G35 Coupe 6MT): Sport-tuned suspension, 19-inch forged aluminum-alloy wheels, P225/40R19W front tires, P245/45R19W rear tires, drilled aluminum pedals, perforated leather and unique stitching on steering wheel, Viscous Limited-Slip Differential Premium Package: Dual-sliding glass sunroof with one-touch open/close feature, Bose audio system with RDS and 8 speakers, auto on/off headlights, power tilt/telescoping steering, A/C dual zone, automatic anti-glare rearview mirror, HomeLink Universal Transceiver Aero Package: rear spoiler and rear underside air diffusers (located on both sides, rear of fuel tank) produces zero lift and 0.28 Cd You can find components of the sport-tuned suspension package (springs, shocks, wheels, anti-roll bar) but not all, like the limited slip diffYou\'d have to go parts-hunting to do thatLastly, I think the color is Lakeshore Slate Metallic, which was new in 2005That coupe in the ad looks like a base 5AT with performance tire and wheel package, so I think it has the limited slip diff at leastBut no sunroof, Bose, homelink, etc.Other related question