Unlock Lexus GS430 And Cadilac
Go to options then cheatcodes and type in "rimbuk"

Unlock Atlanta And Detroit City
Go to options, cheat codes and enter "crosscountry"

Unlock All Cities
Enter "roadtrip" as a code.

Add $1 To Your Money In Carrer
Go to options then cheat codes and type in "kubmir".

No Damage
Go to cheat codes and type in "ontheroad" so that your car wont have any damages.

2004 Ducati SS1000
Finish the Hotlanta tournament.

Faster Pedestrians
urbansprawl

Flaming Driver/Rider Head
trythisathome.

Bunny Ears (On MotorBike Rider)
getheadl

Agro
dfens

Get Smiley Head On Rider
At the cheat menu type getheadj

Skull Head
At the cheat menu, type getheadn

Unlock Flaming Head
Enter "trythisathome" as a code.

Zone
allin

Increase Car Mass In Arcade Mode
hyperagro

Snowman Head On Rider
At the Cheat menu type getheadm

Pumpkin Head On Rider
Type "getheadk" in at the cheat code menu.