It's no real surprise, but neither the town "Waterside, ME" or the Air Force Base Jacob goes to on his way back to England really exist.
It was a robot head!
None of the supposedly British military vehicles used by the British Army security forces around Stonehenge are actually used by the UK. The 8-wheeled armoured car is Canadian as is the Iltis jeep and the 2.5 ton truck. The HMMWV (Humvee) is American, as was the M151A1 Mutt seen in desert tan. The only British vehicle was the Land Rover, which was a mid 50s-60s variant that has been long out of active service.