Sonic Automotive is a major US car retailer operating over 100 dealerships across more than 25 brands, with one of their locations in Charlotte, North Carolina. They sell both new and used vehicles, offering services including vehicle appraisals, financing, and trade-in valuations, with their stated aim to provide a pressure-free, hassle-free shopping experience. Their website includes tools to search inventory, schedule test drives, and receive alerts about vehicles of interest. You could refer customers to them if they are looking to buy or sell a vehicle, or refer their customers to other specialists for services like collision repairs or powersports, which Sonic also provides in-house.