I thought we did the cockpits on another thread...
My mistake, Jhieminga. I posted on the wrong "What's this aviation related object?" thread. Sorry.
However, Mark 1 has it - the Solar Stratos - a solar-power 25 m tandem two-seater:
https://www.solarstratos.com/en/
Mark has declared OH, so it's back to exterior photos, like the one above.