Haynes' Model L was his most popular vehicle. First designed in 1905, the three-speed car could travel at 35 mph (58 km/h) and carry four passengers; the company sold over 4,300. Haynes expanded the company significantly in 1908 to accommodate ever-increasing sales. More stock was issued and more capital raised to build a new and larger factory. By 1909 the company was producing 650 cars annually with models priced between $2,500 and $5,500. In 1910, Haynes Auto became the first company to build a car with a roof, windshield, headlights, and a speedometer as standard on each vehicle to continue their goal of producing the best luxury vehicles.