Yeah, I *know* I'm kicking at a dead topic

But I did want to start a new topic just to ask a little advice. I just got my Smart Forfour, and as a well trained Ecomod novice a good gauge is on my priority list. One problem though, the Forfour is a strange one in the Smart family. I came across several storeys that it's one of the few relative new cars that is NOT compatible to either SG or UG. Can any of you shine a light on this? The Forfour shares most parts with the Misubishi Colt 1.1 from 2005 and up, if that helps...
Thanx