This is the Ferdinand GT3 RS. The pedal powered Porsche GT3 Replica. The body was mainly constructed using cardboard, PVC and aluminum foil. The creator, Hannes Langeder made the Ferdinand GT3 as a “socio-environmental statement”. It took him over six months and cost £10,000 to complete. The Ferdinand GT3 RS in the eyes of the law is still considered a bicycle and can be driven on public roads. It is by far the lightest Porsche we have ever seen. Weighing in at a mere 220 pounds, it is also the slowest.