Jeepneys are buses from the Philippines, originally made from US military jeeps left over from World War II, have now become the most popular means of public transportation. When American troops began to leave the Philippines at the end of WWII, hundreds of surplus jeeps were sold or given to local Filipinos. The Filipinos stripped down and altered the jeeps to accommodate more passengers, added metal roofs for shade, and decorated the vehicles with vibrant colors and bright chrome hood ornaments.
The jeepney emerged as a popular and creative way to re-establish inexpensive public transport that had been virtually destroyed during the wat. Nowadays they are packed with people, flamboyantly decorated and a symbol of Philippine culture but may be on the endangered list due to stricter air pollution regulations.
There is a new documentary out called Jeepney by Perinspire and its about the possibility of an entire industry disappearing because of all the pollution they generate.