that is one strange Rolls Royce, but they have their own gas pump in the yard! (Thank you Rolf!)

https://forums.aaca.org/topic/341211-period-images-to-relieve-some-of-the-stress/page/69/

In 1933 this lightweight and streamlined body was fitted for Alan Bemis to pull his glider up into the air. 

It was given an aluminum body with Plexiglas (Perspex) rear windows, fairly new materials in the 1930s. The dashboard was made of cast aluminum. 

The car had a fin shape at the rear and a tow hook on the back, while the roof had Perspex panels.

https://www.reddit.com/r/WeirdWheels/comments/1potumm/1927_rollsroyce_aerocar_20hp/

It turns out I posted this car in 2016 

https://justacarguy.blogspot.com/2016/04/1927-boat-tail-rolls-royce-20hp-sports.html