Peter Farrell RX-7's do it. One of the RX-7 forum stories goes like this....
"I went a picked up my car at closing time, and started the long drive home. I took a road that was fairly twisty, and well traveled. I thought for the longest time that the flashes of light behind me were the police, but as it turns out it was FLAME shooting from my exhaust..."
or something like that.
sjd