GWR petrol-electric railcar

The GWR petrol-electric railcar was a 4-wheel motorised coach purchased by the GWR in 1911 from British Thomson-Houston, who designed it and supplied the electrical fittings. It was powered by a 35–45 horsepower (26–34 kW) Maudslay petrol engine driving a dynamo which supplied two electric motors, one on each axle. It was provided with a driving position at both ends, and could carry 44 passengers at over 30 mph (48 km/h).^[1][2] It was numbered 100.^[3]

GWR petrol-electric railcar
In service	1911-1923
Manufacturer	British Thomson-Houston
Designer	British Thomson-Houston
Assembly	Rugby, Warwickshire
Fleet numbers	100
Capacity	44
Operators	GWR Lever Brothers
Specifications
Maximum speed	Over 30 mph (48 km/h)
Axle load	7 long tons (7.1 metric tons)
Engine type	Maudslay petrol
Cylinder count	4
Cylinder size	5 by 5 inches (130 mm × 130 mm)
Power output	35–45 horsepower (26–34 kW)
AAR wheel arrangement	B
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge

It was in use on the GWR until October 1919, when it was sold to Lever Brothers, who ran it at Port Sunlight until 1923.^[1]