http://www.mediamax.com/ocukloweuk/H...F355Tunnel.mp3
^^^^^^ That ^^^^^^
My landlord hadn't ever driven his 355 through a tunnel, so I suggested he took it to Queensway, a long tunnel in Birmingham city centre. I went along and took the recording gear and the file is the result of a few runs pasted together.
People in other cars were winding down the windows to hear the howl.
Enjoy, I certainly did!