here are some videos of the engine sound:
idle
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/to0HhBDDYro&hl=en"></param><embed src="http://www.youtube.com/v/to0HhBDDYro&hl=en" type="application/x-shockwave-flash" width="425" height="344"></embed></object>[/u2b]
exhaust
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/flBBr5cxuAk&hl=en"></param><embed src="http://www.youtube.com/v/flBBr5cxuAk&hl=en" type="application/x-shockwave-flash" width="425" height="344"></embed></object>[/u2b]
engine bay
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/m_sXCczQB2c&hl=en"></param><embed src="http://www.youtube.com/v/m_sXCczQB2c&hl=en" type="application/x-shockwave-flash" width="425" height="344"></embed></object>[/u2b]