Ideally, yes I’d take a backup but I don’t have room in the car anymore.
Our singer, who also owns the PA and lights, has stopped driving because of a chronic eyesight problem. Because we live close I take the two of us plus gear in my Hyundai i10. It’s been been a good car but at 11 years old I’m hoping to upgrade it, size-wise, in the next year. I’m thinking of a Skoda Yeti, or similar.
Because of only taking one bass, I take a passive one and check it over before a gig.