Those instruments don't look too period, but i'm sure 3 wheels will be fun.
In talking with Matt Humphries about the design influences for this project, setting aside the original Morgan Threewheeler, which is a given!, they were quite wide and varied (but all very appropriate).
For instance, he wanted to try to capture the appeal of early American street rods (converted Ford Model Ts, etc) with their simplicity and raked stance - even down to the often primer paint. Matt also wanted to inject the aesthetics and feel of aviation and therefore, some of the switch and cockpit detailing will also reflect this (the bomb switch starter just being one aspect). There were others but that would be nice to hear directly from him.
I am very excited to see the finished product, from the conversations I have had, it will be a really unique sports 'car'.