Firefighters freed him from the vehicle after the accident on Old Lane, Halifax, just after 9am today (Saturday).
A West Yorkshire Fire Service spokesperson said: "This was a single-vehicle road traffic collision, with the vehicle going down a banking into a wall.
"One elderly male was trapped in the vehicle. The casualty was extricated by fire service personnel and then transported to hospital by ambulance.
"Appliances from Halifax and Illingworth attended."