Slot-car racing fun in this Shockwave game from Sweden. Build your own course then race against the computer, or against a friend using the same keyboard. Simply drag the track sections to the play field to construct a course. Once you have completed a valid course, you will get the checkered flag. Then just click the flag to begin a race. When playing alone, click the mouse on the race controller to accelerate, release to slow down. When playing against a friend, one player uses the [D] key, the other the [K] key on the keyboard.
The game physics and sound effects inject just enough realism to the game to make it a lot of fun, and the AI is brutally hard to beat at higher levels. Multiple levels of difficulty allow you to adjust the challenge to suit your skill level when playing alone against the computer AI. Bilbanan is hosted by Blip.se in Sweden. Click.
Update: Unfortunately, the original site, TV-4, has taken this game offline, but thanks to Brian the links above have been updated with a new host. =)