May have seen them before, but i think they're still awesome to watch. First one is from a guy in NSW bought an ex works BDA escort. I saw it for sale a while back for about 95K :D Second video is on the same course i think but still awesome sounding engines...

http://www.youtube.com/watch?v=POp7DNKptAo&feature=rec-HM-fresh+div

http://www.youtube.com/watch?v=RVjb8CCeKcE&feature=related