Development of the concept vehicle Magna Innovative Lightweight Auto (MILA) by using simulation tools is described in this paper. The vehicle combines a high degree of flexibility for design and sportiness with the ecologically relevant fuel Natural Gas (NG). The figures with regard to increased cruising range and reduced costs are derived from the concept vehicle. An innovative technology for NG storage systems points out new ways for the future, automotive NG storage technology in a vehicle. The paper refers to the interrelation of weight/costs and the increased fuel efficiency of a NG powered vehicle.