At the "Press Start" screen, press Up(2), Down(2), Left, Right, Up, Down to unlock a special marker in the back room of the One Stop Shop.

At the "Press Start" screen, press Up, Down, Up, Down, Left, Right, Left, Right to unlock the Burger King challenge. PS the last right may not be required.

get chased by the police and the more u get chased the higher ur wanted level rises and the faster the cops become its fun if u dont get arrested.

At the "Press Start" screen, press Left, Right, Left, Right, Up, Down, Up, Down to unlock the Castrol Syntec Ford GT

to do this get the police to chase u for about 5-10 min and on ur map u see a road blok head for it and as soon as u get close to it press O and it turns in to slow motion and just go a little gap through the road block and it also gets u milestone points. try it its fun.

At the "Press Start" screen, press L1, R1(3), Right, Left, Right, Down to unlock the Porsche Cayman