being a vitz owner i feel it's my duty to warn you, there are some good cars out there and alot of bad ones.
and by that i mean a bad 2004 vitz is not as good as a new chevy, but if you are lucky you'll find a good 1999 vitz and then yes it'll bebetter than a chevy.
My suggestion/advie is to buy a car from altamash and eliminate some of the risk involved in buying a used car as he is very knowledgeable in this field and is the sole "authorised" vitz dealer on PW.
Quite a few of us have bought cars from him, and in my case i bought it for my wife (so that means i've trusted his judgement with the lives of my family).
Good luck & even if you are not going to buy from alta i'd suggest you give him a call on 03332135567