i can see (and so can the rest of the people here) that you are fussy. you have every right to be since its your money. however, buying a car (in malaysia at least) does not always give you a right to test out a car before buying. i know of many higher end cars that do not come with a drive before buying policy and i think the retailers have no problem selling them at all. no, it is different from buying newspaper other than the fact that newspapers also lose its value and saleability once read, and most newspaper sellers do not entertain requests to "test read" them before buying. hee hee.
its good to test drive a car to see if you like it.... but a week? well, i wish you all the best. i have only come accross fren fren situation where they pinjam me their car to test for a weekend before i decide, and i think it would be rare cases.