Welcome to the Antique and Classic car auto dealer group of SmartGuy.com. Feel free to interact with other professionals from across the world. You can find professionals, find deals on services, find professionals who might barter, or simple post questions, comments, or suggestions. An antique car is an automobile that is usually more than 25 years old. In original or originally restored condition antique cars are very valuable and are usually either protected and stored or exhibited in car shows but are very rarely driven.