Edited sentence: Add a hood, roof scoop, spoiler or exhaust tip.Add a wide body kit to replace the front / rear bumpers & side skirt.Add vinyls & decals.Because NFS: Underground is street-racing and car tuner theme, the player also has the ability to visually customize their car as well.Front / rear bumpers & side skirt.In the Car Customization menu, cars such as the pictured Nissan Skyline R34 GT-R can be altered with performance upgrades and visual upgrades, such as paint colors and body kits.Lower ride height.Player’s have the ability to increase their car’s performance by applying performance upgrades to the car.The player can upgrade their car’s engine, drivetrain, suspension, tires, engine control unit (ECG)  as well as add nitrous oxide, turbo chargers and reduce the car’s weight (in the form of “weight reduction packages”).The player is able to customize:.Wheels / rims.Window tint