Isn't the reason the shortages persits due to the chip shortage caused by a few non-financial disruptions to the highly concentrated chip makers, like a fire? How would barter or communism or whatever isn't money fix that? By being more wasteful all of the time?

Keep in mind this isn't really a serious problem. Cars still exist, and can even still be rented, they just smell a bit. That's it. Smelly cars. First world problems!