By the time the steam automobile was improved, the complexity of manufacturing relative to the gas automobiles made steam automobiles unprofitable. A steam engine is a device which transforms heat into mechanical motion. This is provided with the usage of boilers, which create steam by boiling water. In the early 1900s, Abner Doble introduced a steam-powered car in the United States which had capabilities that could potentially overpower Ford's Model T in efficiency. Steam has been known to have very efficient fuel economy with a high power source. That is why half the world was powered by steam for almost the entirety of the 19th century and almost half the 20th century. The main drawback of the steam engine in automobiles was the fact that operators were required to have full knowledge of boilers and steam engines before operating, as it was detrimental to the engine itself if the operator neglected it. Electric motors Electric vehicles seemed to be the most viable option, similar to the steam automobiles. It was first invented in the early 1800s, and became a viable option of transportation around 1890, when William Morrison created the first electric car that traveled 14 miles per hour. The electric cars offered low pollution and a soundless ride, unlike their gasoline counterparts. The greatest downside of electric cars was the range. The typical electric car could reach around 20 miles before requiring a recharge. Manufacturers could not increase the number of batteries, due to the bulkiness of the batteries at the time. Without an incentive to purchase the electric automobiles, gas automobiles was the most viable option at the time. Electric cars use batteries to store electricity which is used to power electric motors. The battery delivers the power to the motor, which is either AC or DC. The difference between AC and DC motors is the sort of system that is required to run it in an electric vehicle. An AC motor is generally cheaper but the components required to run it in an electric vehicle such as the controller and inverter makes it more expensive than the DC motor. A unique feature of electric vehicles compared to its gasoline counterparts, the electric vehicle is more simple than the gasoline vehicle. The electric vehicle bypasses the gasoline car components such as the crankshaft which allows it to generate power much faster than gasoline. Because of the faster transfer