These videos are very interesting!!

French national anthem
http://www.broadbandsports.com/node/8696&yv=1

English national anthem
http://videos.streetfire.net/video/2C2FDD09-20FB-49C4-A2D3-3119A456F20B.htm

I first only heard the beginning bit where they're warming up the engine and thought so what.. then a few months later I heard the entire things... just amazing!

I dare anyone that loves to rev up their Rotax Max engines before the races to pull off their national anthem.

does anyone hav any idea how they do it?
lookin at the video, i dont think it is done by the driver instead maybe a computer.

definately done by computer. no way a driver could hit the right note, just based on pedal feel. the computer probably just inputs a series of throttle inputs that they figured out matched the notes of the song.

I think this might make all musical instruments in the world obsolete - who needs anything else when you can use an F1 car?

yeh for sure with computer programmed throttle. I think they do the engine warm up in the pits before races/testing in a similar way with revs controlled by computer - but keeping them low rather than playing tunes.