I freakin' loved this game.
I don't remember a lot of the details anymore, but I do remember liking the way the game handled chase sequences. Everything was always about where pursuer and pursued were in relation to each other, until you finally managed to get past a final hurdle?it made it easy to handle the chase in pretty much any environment.
I still have the basic set books and the Q Manual, somewhere around the house?though I haven't looked at them in years. Now I'm thinking I might go ahead and dig them up and have a look ...