Cadillac was adamant about using its one-cylinder engine for as long as possible. A total of 9 years, long after other car makers were producing 4-cylinder engines. This Caddy is a 1908 model and the one-cylinder engine is under the seat. The hood was primarily to resemble other cars with larger engines out front. Under this hood is just the fuel tank and radiator. This car came with a life-time warranty.