I remember reading something somewhere that said the majority of cars smashed were hit on the passenger side quarter panel. It was determined to be safer to have the gas filler neck on the left than the right. When it was behind the license plate in the back the filler neck tended to get damaged from being rear ended - even light bumper taps could spring the filler neck to crack the seam where it joins the tank.
I thought it was rather unique that GM hid the filler door on some 50's models. Caddy behind the LR Tailight and the 57 Bel Air's in the end of the quarter panel behind the chrome trim.
The 68- 70 Dodge Chargers had an odd location of the " top " edge of the LR 1/4 panel.
And look at the 60's & 70's Corvettes having the filler on top of the rear - I'll call it the trunklid even thought there was no opening for a trunk.
When I worked at Amaco in 1984 a dude come in with new Porsche - might of been a 911? it wasn't the Carera, it had those flip up headlight modules.,,, anyway there is a rubber flap that you could fold out after the filler door is opened so it could protect the quarter panel from knick knicks from the gas nozzle. Well after the guy pulled the gas cap off the car he didn't realize he was at full serve. I'm ready to run the nozzle in the opening and the rubber boot around the gas nozzle bumps his quarter panel before he got the rubber flap unfolded. This guy almost had a heart attack. I reassured him there was no dent or scratch. I had to pull the nozzle out so he could check, then he pulled out the rubber protector flap and told me to be more careful. We never saw that car or that dude again.
Best one was when Daddy - O was trailering a 20' Renell cabin cruiser in the early 80's. Pulling in the gas staion to fill the boat up - the filler hole is 4 feet above your head. One person had to get in the back of the boat and the hose had to be given to the guy up above. The guy on the ground operated the pump. hahahaaha.
My cars filler neck locations were:
73 Impala, Behind Lic Plate
68 LeSabre, Behind Lic Plate
78 Olds 88, Behind Lic Plate
91 Bonneville, LR 1/4 panel
89 Z - 24, RR 1/4 panel
05 Park Ave, LR 1/4
Harryface
05 Park Avenue, 33,175
91 Bonneville LE 305,279