Torkmonsta
CEG'er
This one is pretty bad too... sounds like @ss. I've only heard one car sound worse than this, and if I can find the video on my computer I'll upload it. I took it at a local circle (well oval really) track. It was a Taurus SHO... sounded like Garb.
http://www.youtube.com/watch?v=GJi16iBpEc0
http://www.youtube.com/watch?v=GJi16iBpEc0