To be honest, I am not sure either, I just saw this album cover and posted it here.. but I´d say it very much looks like a 60s Skoda Octavia, I´d call it correct
Okay looks like its the Renault Project 114 prototype... I´ll be honest, without your hint I would have never found out.. prototype cars are really hard, to guess them is mostly only possible with some hints in the photo or if one has seen it somewhere before by coincidence.. Ok now lets have an equally rare prototype, but I guess this one is a bit more famous...
It was not made by a car manufacturer, although chrysler had some initial interest in the concept. It was constructed at the same time as the chrysler airflow. The concept was eventually dropped due to safety and economic reasons. There were three prototypes build.