I've got a couple of the 20 quid ones, and when they are just sitting in a glass cabinet as a representation of the car, I can't fault it. Especially when you think if you got them from the wrong place with postage etc. you can nearly buy 3 to every one autoart model.
I have had a good look at the Autoart ones, and they are really good though - you pay's yer money and you takes yer choice