Quantum Fuel Systems Technologies Worldwide Inc is engaged in the innovation, development, and production of compressed natural gas (CNG) fuel storage systems and the integration of vehicle system technologies. The company's product includes Advanced fuel storage tanks, Q-rail CNG fuel systems, Q-cab CNG fuel systems and Virtual pipeline CNG trailers. An advanced fuel storage tank uses a cross-linked polyethylene liner with a carbon fiber to achieve unparalleled fuel density. Q-rail CNG fuel systems feature a sleek, aerodynamic, which is extremely lightweight and incredibly durable. Q-cab CNG fuel systems features fill door with lockout switch, hook and hang assembly, and compact design. Virtual pipeline trailers provide delivery and storage of CNG and other gaseous products.