Given this thread http://forums.overclockers.co.uk/showthread.php?t=18604107 I really doubt you could run it let alone insure it.I don't understand why he would be jealous of you. My car is crap but even I'm not jealous of you, because your A3 isn't really worth getting jealous over. I could replace my car with an A3 very similar to yours, right now, at 19, but I don't want to.
I'm sure the people you are accusing of being jealous could too.
There are people on here who it is understandable to be jealous of, I seem to remember having a brief chat with one guy who has a DB9 and some BMW's at 26.