There several avenues available to purchase a car here. But first, what is your budget for the new car? Do you want to a buy a new one or second-hand? Do you have any preference for a particular brand (i.e. Toyota, VW, Honda, BMW, Mercedes, Kia, etc) or country/region of origin (i.e European, Japanese or Korean)?
Do you want to prioritize fuel economy or driving pleasure (or both)? 7-seater wagon/van, 5-door sedan or 2 door coupe? All those parameters determine what choices you have here.