Today, a third photo I’d have posted earlier if I’d realised I had it - and this is an interesting one. The BMW 600 was basically an extended four-seater version of the Isetta. The big front door was retained for the driver and front-seat passenger but the rear seat occupants entered via a single side-door on the right. The missing link between the BMW Isetta and the much more car-like BMW 700 I posted recently. Pic - Classic Motor Show Bremen, 2014.