Edmunds Deals Want to find the best deal on a vehicle? You've probably heard of Carmax and AutoTrader, but Edmund's.com is one of the largest discount car sites in the US. They offer no hassle and no obligation free price quotes on cars, and claim to have the lowest car prices available to save you money. Edmunds will provide you with info and prices from multiple local dealerships, so you can get the information you need to negotiate your best deal when you walk in to make a purchase. They've even got a Price Promise guarantee, which asks a Dealer to give a specific quote on a vehicle, and if the consumer decides to buy the car, that initial quote must be honored.