The Day Utility was an automobile manufactured in Detroit, Michigan by the Day Automobile Company from 1911-14. The Day used a four-cylinder, 30 horsepower (22 kW) engine and shaft drive. Removal of the rear seat and doors allowed the car to be converted from a five-seater touring car to a light truck in one minute. As a truck, the Day was able to carry up to 1,000 lb (450 kg) in a 36-inch (910 mm) by 96-inch (2,400 mm) cargo space. The rear seat could be lifted away by triggering two spring locks. The Day had an advertised price of $950US.