Swung by Atlantic Truck Center in Lake Charles over the weekend since a few people here asked about them. They keep around 85 vehicles, mostly 4x4 and off-road rigs. Heads up: they don't let cars leave for an inspection, so bring your OBD reader and a flashlight.
Lot address: 6966 Trailhead Rd, Lake Charles, LA. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Lake Charles lot gate.
Paper side: licensed with the state (looked it up), about 91% of stock has title in hand per the office, and they offer a 3-month/3,000-mile limited warranty.
Overall: decent cars, pushy back office. The $349 doc fee is fine but watch the add-on sheet — say no twice and the price comes back to earth.