The Model T had a front-mounted 177-cubic-inch (2.9 L) inline four-cylinder engine, producing 20 hp (15 kW), for a top speed of 40–45 mph (64–72 km/h). According to Ford Motor Company, the Model T had fuel economy on the order of 13–21 mpg-US (16–25 mpg-imp; 18–11 L/100 km).The engine was capable of running on gasoline, kerosene, or ethanol. Although the decreasing cost of gasoline and the later introduction of Prohibition made ethanol an impractical fuel for most users.