Activating this trainer:

Press F1 at main menu.

Listen for 'Trainer Activated'.

Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options:

Numpad 1: Freeze AI

Numpad 2: Set Money

Numpad 3: Freeze Timer

Numpad 4: Super Acceleration

Numpad 5: Super Brakes

Numpad 6: Super Jump

Notes:

Numpad 1: Freeze AI - toggle on to try and freeze the AI drivers.

Numpad 2: Set Money - press to set the money to the value shown in the trainer.

Numpad 3: Freeze Timer - toggle on to try and freeze the current lap timer.

Numpad 4: Super Acceleration - press this to push car faster.  You can change the value in the trainer to hone how much this affects the car.

Numpad 5: Super Brakes - press this to instantly brake to a stop.  You can change the value in the trainer to hone how much this affects the car.

Numpad 6: Jump - hold down to vault into the air.  You can change the value in the trainer to hone how much this affects the car.