t is simpler to determine the effects of altering a separate chassis than it is to determine the effects of altering a load-bearing unitized platform body. Coach builders have built models based on SUVs with a separate load-bearing chassis. The weight requirements of these limos do not meet some/most states Department of Motor Vehicle Rules and Regulations. Limousine manufacturers are often challenged to meet safety, exhaust, weight, and other standards with longer vehicles that hold more passengers (weight).