Beetle gas heater, when it worked, would melt your Crocs. Semaphore turn signals were a great example of modern engineering. And woe be the person that gases up and forgets to close off the reserve lever.
You want quirky rear engine cars, try the various Renaults. Who would think to put the fuel filler inside the engine compartment? The French! I borrowed a R10 for a weekend. Neither the the gas jockey or I could find the filler, had to make a long distance call (after getting change) to the owner. Just be sure the gas nozzle goes into the gas filler, not the radiator or oil fillers.
Then there’s the early Corvair automatic transmission selector. Try to find it.