LOL I had completely forgotten there were gas caps under the fold down license plates way back when. I can picture my dad pulling the plate down to fill up.
I think the last cars built with the fuel port under the license plate was the Chevy Caprice/Buick Roadmaster from 1992=1995. They were body on frame, rear wheel drive cars built on the same frame as the 1977~1990 Chevy Impala/Caprices (as well as Olds, Buick, and Cadillac full sized cars of that era). From the frame up they were new designs though. It was also one of the last car with the pair of keys.
I had a 92 Roadmaster I bought new and finally sold just before Christmas last year. For an ICE, it was a great car, but my Model S is so much nicer in most ways. The seats on the Roadmaster were still nicer, they were like a nice comfy chair which made road trips nice. For everything else the S is better.
One reason they quit putting the fuel port behind the rear license plate is the trunk lids. Pretty much all cars designed in the last 20 years have trunk lids that go down almost to the rear bumper and usually the license plate is mounted on the trunk lid. The Roadmaster had a big trunk, but with a rear lip that was about 2 1/2 feet high. There was a cargo net that allowed carrying things like a couple of bags of groceries secure against the back trunk edge, but it was a major pain getting large and heavy things in any out.
If Tesla was going to put the charge port on the side of the car I wish they had put it on the passenger side for whatever country the car is built for because street side charging is going to become more common and it's safer and more convenient to have the plug on the curb side of the car. Though I do like the way Nissan did it better with the Leaf. I much prefer to nose in and back out. About the only narrow space backing up I've done in more than 20 years is backing into supercharger spots.
This is far from universal, but the majority of people who are comfortable backing into things like parking spaces with cars on both sides are male. I don't like it either, but I only know a couple of women who would even attempt such a thing.
Not necessarily. My Chevy pickup has it on the driver's (left) side. My wife's (American made) outback had it on the right. GM used to be mostly left side, be seems to be a mix now. I had a Chevy Cruze rental recently that had it on the wrong (IE, passenger) side.
The two Subarus we've had (a 96 Outback, and 2013 Impreza) both have the fuel port on the right.
A bit of a funny fuel port story. In 2015 I had to rent a car and got a Nissan of some kind. The first time I stopped for gas I remembered to look for the icon around the fuel gauge and pulled up to the pump on the correct side (it was on the left if I remember correctly). But then I couldn't figure out how to get the dang door open! I looked all around inside the car for a door release, but couldn't find it. I looked on the key fob for a button. Finally out of frustration I bumped the fuel port door and it opened.