Abstract: An integrated chassis and compressed gaseous fuel system of an automotive vehicle provide long-range fuel capacity for the automotive vehicle. The chassis is a support structure defining at least one cavity in which a respective tank of compressed gaseous fuel is accommodated. By so designing the chassis to specifically accommodate a discrete tank(s) of compressed gaseous fuel, a much larger volume of fuel can be stored in the vehicle than in the case where existing storage space, such as trunk space, in a conventional automobile is used to store the compressed gaseous fuel. Accordingly, the present invention greatly increases the range of automotive vehicles powered by compressed gaseous fuel.