Car to bike.

There is a zero emission Opel Corsa listed on eBay. It is not driven by an electric motor but has been retrofitted to be powered by the muscles of up to four humans without the help of a pedal-assist system. While more than 500 users are watching the auction, no bids have been made – yet.
ebay.co.uk via singletrackworld.com, youtube.com (video)