Humber: 4.5 h.p.
Note: This is a sub-section of Humber: Cars.
1901. 4.5 h.p De Dion single-cylinder vertical engine with live axle and shaft drive. It has two forward and two reverse speeds. The standard model cost £275 and the de luxe at £300 guineas. A year later it was upgraded with a more poweful engine to become the Humber: 9.5 h.p..