The 531 Hauler is a trailer that can be bought at Boxed Cars for $13,000 in-game Money. It is the largest trailer in the game. It is equipped with a tailgate that can be opened or closed like the Val's All-Purpose Hauler. Unlike the Small Trailer , the 531 Hauler features 4 wheels, a much larger potential hold capacity and an advanced suspension system. This trailer is the only one that currently features an advanced suspension system. If you look closely, you can see the wheels rotating themselves to an angle perpendicular to the ground, which provides suspension. The 531 Hauler is also the only vehicle that does not have wheels under the bed. This trailer can be spawned for $260 in-game Money , and can appear in many colors, including pink.