Car Handshake is an online car-shopping service and consumer product of Dealer Handshake Inc. It helps buyers find and compare new and used vehicles through dealership listings, with search options for make, model, price, location, distance, body style, and vehicle type. Shoppers can explore categories such as SUVs, trucks, hybrid cars, electric vehicles, and cars within selected budgets, or browse popular models, locations, and recently added inventory. Listings display details including advertised price, mileage, fuel type, photos, dealership, and when the vehicle was last seen in inventory.

The service is designed to help buyers evaluate options before contacting a seller. Users can save vehicles on their device without creating an account and compare details side by side. From a vehicle page, they can ask the dealership a question or request a test drive. Car Handshake also offers a way to find and compare listings within ChatGPT. For dealerships, the company provides a directory, partner resources, developer tools, inventory API, and support.