The Wolseley 45 was the only car with a three-cylinder engine made by Wolseley. The car came out in 1902 and was the top model.

The cars had a three-cylinder block engine with a 8442 cc capacity and lateral vertical valves (sv), which produced 45 bhp (33 kW) at 750rpm. The chassis had a length of 2,591 mm.

It is not known how long this model was manufactured and how many copies were sold.