New one to me. It was built by Lansing Bagnall, best known for their fork-lift trucks and baggage trucks. It was supposedly a 4-seat saloon, but power was a 5hp transverse vertical-twin driving the front wheels. The 3-speed 'box was mounted below the engine, so the whole shebang precedes the Mini.
I use the words "supposedly" and "but" advisedly - 5hp to carry 4 adults ?