I came across this forum, while lookin into the trf501. I saw this thread and HAD to post. I love the sound of a manx norton goin down the gears or a yzr500 at full tilt, or that ferrari music, but its hard to beat the winged engines...
One for the brits
http://youtube.com/watch?v=SZo1KBPKa7c
For the americans...
http://youtube.com/watch?v=Kw6UWPaTUt0&feature=related
And for the... EU people
http://youtube.com/watch?v=5nj77mJlzrc&feature=related
But since this is a model car forum, im suprise none of ya have a nice sounding model engine.....
http://youtube.com/watch?v=vxYRa0pqxlw