http://www.gumball144.com/Video/Tape1.mov
explanation :
the car with the video camera inside is an old bmw m5
it looks like a police car and has speaker on the roof.
its during the gumball race and they drive behind a lamborghini gallardo and want to stop him ( prank )
the driver of the gallardo thinks this are real cops so he stops
the sound is nice
the vid quality isnt that good because its during the night