a mate of mine at mrc tuning in banbury just took me out in his audi s4.its amazing.ive neva felt anything like it.it did a top speed run against an ultima (635bhp) couple of weeks ago.he hit 198 mph. go to www.vimeo.com then search for mrc s4.and watch the video,it leaves it standing after after the 0-60 sprint.gotta have a look