I am reminded of a funny story about my buddy Ed and his wife who came form a car family but she had limited interest. On their frist trip out with Ed's 56 Chevy wagon (235 powered) Ed stopped for gas, he asked minutes (his wife) to put gas in the car so he could run in and use the rest room. When he came out of the restroom he noticed Christina walking around the back of the car she looked down the right side then down the left of the car. She tired to flip the license plate down, Ed watch a couple minutes before coming out and playing down by asking "What's worng?" Christina replied "I can't find the gas door." Now Ed bying a bit of a joker Looked down the left side then the right side and said "OH SH-T! Someone must have put quarter panels on this car, and never put the gas door back in! Christina started to get wound up "How are we going to get home?" After a few frantic seconds for his wife which Ed found humorous, he revealed the gas filler under the taillight. Christina didn't find it that funnt.
Looking at some of these car's they must be a pain to put fuel with today's pump handle (speaking mostly of California) that look like this. As opposed to this that fillers necks were designed around.
I run a stainless marine deck fill neck in the floor of the trunk of my Chrysler. It has an o-ring seal, so there are no fumes in the trunk. To vent it, I had a bung welded to the top of the tank to mount a rollover vent. I then run a hose from the vent to a spot above the level of the top of the tank to allow it to vent without making a mess. So far, so good.
I've experienced this a few times, and the attendants have actually approached me and asked if I'd mind pumping my own fuel because they don't want to screw anything up. Hidden inside the trunk, it's the factory location on my Jet and you don't have to empty the trunk out in order to fill up either.