I bought a set of these a while back, just to undo the 'torx from hell' behind the dash ( took 2 minutes...

http://www.amazon.co.uk/Stanley-Tools-T ... atchet+set
Its bloody brilliant, the torx pieces fit 'into' the ratchet not 'onto' it, so the depth of the tool is less than 1.5 inches, which gets into many tight places...

As you were...