Video: Solar-Powered Subway Car Hack
MIT Hackers put a Boston MBTA Red-Line-style subway car on the wall around MIT's Great Dome on April 27, 2009, and it was solar powered. On April 28, 2009, with a large crowd watching and cheering, the subway car started moving.
The train's next stop is listed as "Baker House," referring to a hackers' tradition of asking, "Is this the way to Baker House?" when discovered in strange or illicit locations by officers of the MIT Police.