The first gasoline-powered wheeled vehicle was invented in 1885 by Karl Benz. However, many previous developers and designers had notions of automated conveyance, including Leonardo da Vinci.
The first mass produced automobile was the Curved Dash Oldsmobile, which was developed by Ransom Olds in 1902. Until the Ford Model T entered the market, it was the single most widely purchased car in the world. However, it was not until 1921 that the first contemporary car, known as the Suburban, was built by the Cadillac company. This was the first car with a keyed ignition, a gas, brake and clutch pedal, and a front windscreen.