It may be 116 years old but the Porsche P1 is still bang up to date. Before he set about building his auto empire, 23-year-old Ferdinand Porsche designed what's thought to be the world's first electric car. It had a range of 80 kilometers and a top speed of 35 kilometers an hour. Discovered in an old shed in Austria, it's just gone on display at the Porsche Museum in Stuttgart.