Trainers are deeply tied to the specific version of the game’s executable file ( NeedForSpeedPayback.exe ). If you downloaded the game via Steam, your file might differ slightly from the EA App version. Always ensure the trainer description explicitly states support for your specific platform launcher. Step-by-Step Guide to Using a Trainer
For those who prefer not to use external tools, here is a legitimate roadmap to unlocking every vehicle through gameplay. nfs payback unlock all cars trainer better
Are you looking to unlock or just need infinite currency ? Trainers are deeply tied to the specific version