I have 72 Dodge wagon, the tank has a very small leak, I cleaned the inside pretty well, I was going to epoxy inside lower half, and it is to me kinda shocking that there is basically only 2 pcs of 20g? steel and 1/2" of space stopping a 22 gal gas fuel inferno in a LR fender bender. Surprised we all made it. I was debating adding a few layers of Kevlar on the outside of tank and bottom for added peace of mind.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.