What did Chrysler Engineers do in their spare time?

Thanks. I have a few different backgrounds from a guy in one of the FB model groups. Probably will get a few more in the new year. Like to mix them up some.
Totally agree on We Were The Ramchargers. I'm due to re-read it. Got to get through Sox & Martin: the Most Famous Team In Drag Racing and Landy's Dodges first though. Never enough time.