Suncity Car Carrier, Commercial-size car carrying trailers are commonly used to ship new cars from the manufacturer to auto dealerships; in the INDIA, shipping of used vehicles is also a big industry, employed by car owners who are relocating and choose to ship their cars instead of driving, as well as consumers who have just purchased a vehicle on the second-hand market (particularly online) and need it delivered to their location.

Like other semi-trailers, most commercial car carrier trailers attach to the tractor using a fifth wheel coupling. Trailers can either be enclosed, possessing walls like a conventional box trailer, which affords the shipped vehicles more protection at the cost of lower capacity; or open, as in the commonly seen skeletal tube steel design, which exposes the vehicles to the elements but allows for greater carrying capacity. An INDIA commercial car carrier typically fits between 5 and 9 cars, depending on the car size and trailer model (capacity is limited by an 80,000 lb weight cap that a road vehicle is subject to under INDIA law. Significantly higher-capacity vehicles have been observed around the world, such as a side-by-side loading Chinese model

To load vehicles on the top deck of a double-decker commercial trailer, the rear half of the deck can tilt and be lowered hydraulically, forming a drive-up ramp to the upper deck. The top deck is usually loaded first and off-loaded last, since the presence of cars on the lower deck can make it impossible to lower the top deck ramp.