hi im about to buy a series 1 turbo and to be honest im clueless about them ive ask around and everyone seems to have an opinion well heres the questions i need answering.....does a series 1 have a sunroof...?whats the difference in custom....non custom...?.....the car im about to buy on friday as been stood for 5 years in a garage what underlying problems im i expected to come across...apart from the obvious rust....cheers clueless custom buyer