bravo for your girlfriend. It’s simply a fact where I live though (western Wisconsin), that if I see a small car plastered with decals, it’s (1) most likely a Subaru and (2) the stickers will be all lib/leftist slogans.
The same’s true for F-150 and F-250’s (which I’ve owned several of through the years!) if you see an F-series truck it’s sure to be plastered with right-wing bumper stickers.
I know mine was!
Ed