Trading in your car is a great way to save money when you're looking to get behind the wheel of a used car, and a new online services has just made the process even easier. The popular automobile valuation company Kelley Blue Book has partnered with AutoTrader.com to provide a service that lets consumers shop their car to dealers all in one spot.

The newly-launched service allows those interested in selling their car to fill in all of the ride's information including its make, year and condition, making everything open to dealers interested in making a purchase of their own. If your car gets a hit, you can drive it down to the dealer and they'll likely buy it from you on the spot.

"In addition to Kelley Blue Book's top-notch values, this new option provides consumers further peace of mind that they can get an actual offer online to trade in or sell their current cars quickly and easily," said Justin Yaros, the executive vice president of Kelley Blue Books' kbb.com. "And best of all, that offer is backed 100 percent by AutoTrader.com."

Trading in your used car is also an option at New Jersey State Auto Auction, which is an authorized AutoTrader.com trade-in marketplace dealer. The partnership gives consumers the opportunity to get a free appraisal of their car within seconds.

"As an authorized Autotrader Trade In Marketplace Dealership, we are equipped to provide an instant quote to Trade or Purchase a customer's used car, with payment right on the spot," said Lazlo Ember,the internet marketing director at New Jersey State Auto Auction.