Get a free, instant cash offer to trade in your car! With your Kelley Blue Book℠ Instant Cash Offer, find the value of your car from the comfort of your home. Provide our team with some information and receive an immediate response on what your car is worth. Bring in your offer to Gary Lang to receive your check or to use towards your next vehicle purchase. Other trade-in value tools represent your vehicle's worth based on general analysis of the model. But Kelley Blue Book℠ Instant Cash Offer is unique to the equipment and condition of your specific car, truck, or SUV. We encourage you to find how much your car is worth and visit us in McHenry today!