There are a few ways to unlock all the car upgrades in GTA 5 online without racing. The first way is to complete the game’s story mode and then play the online multiplayer mode. In the online multiplayer mode, you can find different challenges that require unlocking different upgrades for your car. The second way is to cheat by using a cheat code or by using a third-party tool. The third way is to buy all of the available cars and then unlock all of their upgrades in-game.
