The PlayStation® franchise, Gran Turismo, published by Sony Computer Entertainment America has revolutionized the landscape of racing simulators with its realistic physics and graphics and intense gameplay amongst a wide selection of fully customizable cars and numerous courses. And it's all thanks to Kazunori Yamauchi, President of Polyphony Digital Inc. and creator of the award-winning Gran Turismo franchise. With Gran Turismo 4 currently available exclusively for the PlayStation®2 computer entertainment system, Polyphony Digital Inc. modified this Civic Si, complete with a PSP™ (PlayStation®Portable) system for each occupant, including one cleverly mounted in the steering wheel. Other modifications include a custom lowered suspension, 18-inch Enkei wheels, and a fully customized interior with Recaro seats and Razo pedals and shifter.
| Chassis/Suspension Modifications | Custom lowered suspension |
| . | 18x7 Enkei RPF1 wheels |
| . | 225/40R-18 Yokohama tires |
| Exterior Modifications | Voltex Type I wing |
| . | Custom Gran Turismo 4 graphics package |
| Interior Modifications | 4 PSP™ (PlayStation®Portable) systems mounted for each occupant |
| . | Special PSP-equipped steering wheel |
| . | Razo pedals |
| . | Razo shifter |