guys,
as stated above the im240 program is free, also you may use this service as many times as you like, and there is no obligation for vechiles to undergo repair if it produces a poor result. Bookings can be made on 137247.
From my own experiance the rta officer performing the test will only give you a print of results and not an actuall pass/fail, this is the job of the registered signatory
bmxwrx is spot on, the test is a leasurly drive on the dyno to work, with a max speed of about 80kph
hope this helps
lenno