LS6 RX-7 (LS6 as in last Generation Vette motor!)

[3GFX]

This is awesome, it sounds so mean!

http://www.youtube.com/watch?v=tianB2-x1TA


oh, and here's an LS1 RX7...

http://www.youtube.com/watch?v=PBECC-h01gI&NR=1

56 seconds in, listen to the idle!

[dentinger]

meh old news....

how about
4 rotor bmw
http://www.youtube.com/watch?v=HCX9rZueNfQ

supra from hell
http://www.youtube.com/watch?v=rmNy-ajRV0U

there's others, but those are the 2 that quickly come to mind.