You wouldn't necessarily want to buy a car online the way you'd buy a book from Amazon.com -- sometimes it's better to check out the car in person before you buy it and only then have it shipped to your doorstep. But there are several Web sites, including Consumer Guide Automotive, CarsDirect, Cars.com and AutoTrader, that let you read automobile reviews, see what actual owners have to say about these models, and then search the local dealers near your ZIP code to see what kind of price the best cars are being offered for. You can do all of this from the comfort of your very own computer chair. And if you really do want to buy your car directly from the Web site, some will give you that option, too. With a greatly reduced overhead cost, these sites can offer some impressive bargains.