I have a 97 z24.Everytime I fill up my gas tank, there is a strong fuel smell inside and around the back of my car. I don't spill any fuel, and I don't see any fuel leaking after parking the car and watching for leaks.....After I burn about 1/2 tank, it goes away! Anyone have any ideas or suggestions to what it could be
 
I have a similar problem, however, I'm almost positive my problem is from a gas tank leakage... I've temporarily solved it by just not filling the tank up.  Since I am leaking gas too, this is my best option until I can get it fixed.
Good luck to you!
Alex~
 
Could it be a bad gas cap? If its not sealing corectly maybe?
 
Hi Matt
are you able to look under the car when you get that smell.
Could be just a leak from one of the pipes/clips. 
There are fill,supply.return, carbon filter and vent pipes
I had a tank leaking a while back.
The gas crept over the surface of the tank and then evaporated. 
The smell was strong but no gas leaked on to the floor!
Alont