Racing Car Human Sound Simulation
If you can't see the flash movie above, please download the latest flash plug-in from here.
2 humans mimicking two racing cars . . or is it more than 2? This was spread around as a Insanity Test. If you start laughing, you're insane (according to the test). Popular ringtone.
Update: Looks like the Crazy Frog song adapted the sounds featured in this clip for the song with the Axel F music.