The trainer allows you to simply turn on the codes built into the game.
ALT + 1 – Toggle CHAMPS – Unlock all championships
ALT + 2 – Toggle XCHAMPS – Unlock bonus championships
ToCA Race Driver 3: Trainer (+10) Free Download
ALT + 3 – Toggle NODENT – No car damage
ALT + 4 – Toggle THEEND – Unlock all cutscenes
ALT + 5 – Toggle PALMER – Enable speed boost
ALT + 6 – Toggle JUMP – Enable turbo-boost jumping
ALT + 7 – Toggle TOYCAR – Unlock high speed toy car championships
ALT + 8 – Toggle SLOT – Unlock slot racing championships
ALT + 9 – Toggle HONDA – Unlock Honda championships
ALT + 0 – Toggle XHONDA – Unlock bonus Honda championship