No - there is no plastic undertray to speak of, I took it off a while ago while I was working underneath the car and I haven't put it back on, I have a new one lined up that I'm going to put back on once I've finished fiddling with all the oil leaks So yeah - maybe I'm a bit dodgy as well
Having said that, I do mostly agree with bbaacchhyy in that I do the work myself these days because most mechanics don't care about my car as much as I do (even if you *pay* them to care about it for a couple of hours of their life).