Key4All was a social experiment where 5,000 participants received keys to the same car – a 2004 PT Cruiser. To locate the car, participants could call a hotline that reported the vehicle’s GPS coordinates. If found, the car could be driven, but never without risk of being taken by another key-holder. The car traveled across the entire U.S. before becoming impounded. Along the way, it was repaired, repainted, and loved by the Key4All community.