Car game

i am wanting to make a car game i started last nite really quickly and just made my ferrari F-40 move around using a extension off so all i need now is

1.a background of a racetrack or somethin

  1. sum i would imagine actionscript on how to when it goes over the finish line for winner or sommet to flash up after 3 laps etc

any ideas where i can get the track and the code from