Just rang AT Speed as recommended by Carmadbaker and booked the Zed in for a run tomorrow morning at 11am
I'm quite excited....the last time the car was on the rollers this happened
http://www.youtube.com/watch?v=FMASGcAfxKY
Now it was either a case of.....they hadn't sat the car on the rollers properly...or something to do with the passenger wheel sitting at \ that sort of angle...or a combination of both.
Well now the wheels are straight (always handy) and AT Speed is a 2 wheel roller it eliminates both of those problems....so we'll see. Be nice to get a figure of what my car is pulling as well