The Siemens Inspiro system uses light-weight aluminum cars to increase recyclability and efficiency. The new train cars were designed for Poland’s new light rail system and aims for a 2012 installation. Siemens, BWM and Poland collaborated on the design. The design is cutting edge and will help divert wastes from a landfill. However, recycled materials were not used in making the cars. The next logical step would use recycled materials to build the trains, and really close the loop. Enjoy the video,