Auto Parts Warehouse: Get as much as 75% OFF plus FREE Shipping on all orders of $50 or more
This online store sells more car parts for car models made since 1964 to do more things than any store we've seen. They also have excellent prices and a price guarantee: "Auto Parts Warehouse guarantees to have the lowest price available on every product we sell. We're so confident that no one offers a lower prices, that if you find a competitor advertising the same product at a lower price we will either match or beat that price. If you find a lower price anywhere, just fill out the form...we will get back to you ASAP with a quote"

AutoPartsGIANT
AutoPartsGIANT offers free shipping on its full range of "Domestic Auto Parts, Import Auto Parts, Accessories, Body Parts." They carry "Acura Parts, Amc Parts, Audi Parts, Bmw Parts, Buick Parts, Cadillac Parts, Chevrolet Parts, Chevy Parts, Chrysler Parts, Daewoo Parts, Daihatsu Parts, Dodge Parts, Eagle Parts, Ford Parts, Geo Parts, Gmc Parts, Honda Parts, Hummer Parts, Hyundai Parts, Infiniti Parts, Isuzu Parts, Jaguar Parts, Jeep Parts, Kia Parts, Land Rover Parts, Lexus Parts, Lincoln Parts, Mazda Parts, Mercedes Benz Parts, Mercury Parts, Merkur Parts, Mitsubishi Parts, Nissan Parts, Oldsmobile Parts, Plymouth Parts, Pontiac Parts, Porsche Parts, Renault Parts, Saab Parts, Saturn Parts, Subaru Parts, Suzuki Parts, Toyota Parts, Volkswagen Parts, Volvo Parts." Basically, this site has parts for the largest range of car makes and models of any site we've seen.

Yahoo! Autos
At this site finding the best price on the new car you desire is as simple as entering your desired car make, car model, and local zip code. If you're not sure what make and model you're looking for they have tools to help you decide. You can browse and compare cars, read car reviews, and see how much varios options cost. Need to sell your car? You can also create a listing to sell your car at this site.