That's it jotage21 - well done.
The car was built by Murrill Motors Co., Sacramento CA in the late 1970s/early 1980s.
It was a working prototype and the type designation 3XE stood for Electrical, Economical, Ecological.
One 6hp GE dc motor drove the rear wheels to a top speed of 50mph (80kph). Range was 90 miles (144km).
I presume this was the only car completed and I haven't seen any further photos of it.