When buying a car online, compare financing options, review vehicle history reports, have the car inspected by an expert, negotiate with private sellers for discounts, and watch out for hidden fees to avoid getting scammed and ensure a smooth purchasing experience., A few of the best places to buy a car online include popular platforms such as CarGurus, AutoTrader, and Cars.com, each providing unique features to cater to different needs and preferences., We’ll guide you through the five biggest online car buying services, helping you navigate this modern marketplace. And a quick car vin lookup will ensure you’re on the right track before finalizing any purchase., Dozens of mobile apps and online marketplaces allow you to buy a car — or finalize most parts of the process — from the comfort of your couch. Convenience aside, there are plenty of reasons, Here, we’ll explore the top platforms for used car shopping, from big names like Facebook Marketplace and eBay Motors to specialized sites featuring car listings for every need. Autotrader: Extensive selection, strong vehicle history reports. Facebook Marketplace: Great for private sales, no fees., We’ve ranked the top online car buying platforms of 2025 based on inventory selection, user experience, price transparency, financing options, and buyer protections. Whether you’re shopping for a new ride, a used deal, or something rare and collectible, these trusted sites can help you get it done faster and easier. 1. CarsDirect..