Vintage dress with car pattern - size M

Bought this at Jet Rag in LA (if you're familiar) in 2013. Haven't worn it since 2014, actually.(eek) It's in pretty good shape, buttons on the top and has a stretchy beige lining inside it. Spaghetti straps are not adjustable. It seems definitely of a different era but don't know when it's actually from, tag says Audrey no other info on the dress. Waist 14.5 inches laying flat.