The Model T was offered in several body styles, including a five-seat touring car, a two-seat runabout, and a seven-seat town car. All bodies were mounted on a uniform 100-inch (2.5m)-wheelbase chassis. A choice of colors was originally available, but from 1913 to 1925 the car was mass-produced in only one color—black. The engine was simple and efficient, with all four cylinders cast in a single block and the cylinder head detachable for easy access and repair. The engine generated 20 horsepower and propelled the car to modest top speeds of 40–45 miles per hour (65–70 km/h). In most models the engine was started by a hand crank, which activated a magneto connected to the flywheel, but after 1920 some models were equipped with battery-powered starters. 