A Brief History of New York City Taxi Cabs

A gas-electric hybrid taxi drives on a street on March 1, 2011 in New York City. In May 2007, New York City Mayor Michael Bloomberg proposed a five-year plan to switch New York City's taxicabs to more fuel-efficient hybrid vehicles. However, the plan was dropped after operators complained that the cost of maintaining the new cars outweighed the fuel savings. Today, New York City has around 4,300 hybrid taxis, representing almost 33 percent of the 13,237 taxis in service—the most in any city in North America.

• Hail to the New NYC Taxi