Numpad 1 : Get 200,000,000 Money
Numpad 2 : Get Style Points
Numpad 3 : Inf. Time

Numpad 1: 999,999 Drift Points

Numpad 1: Grunt Hide
Numpad 2: Ammo Mule
Numpad 3: Mega Weapon

Numpad 1: Add 50,000 Score
Numpad 2: Rock meter will stay high
Numpad 3: Instant Star Power
Numpad 4: Perfect Keypress

This saved games will give you access to all tracks, all cars and all trophies, all championships and all trial modes.