I have the same problem with my 1200 GX sedan.
Mine is however doing the following:
When I fill her up at the gas station, they cannot do it at "full speed" with the pump.
They must do it very slowly otherwise it will "spit" fuel out of the filler pipe where you put the line in to fill her up.
Basically a airlock.So I tell them everytime to do it slowly.
This is however not the problem.
When my fuel tank is either half filled or more
it smells when ONLY turning to the left on a road. On 90 degree left turns or left turns that is taken faster than normal.
I think it is spilling fuel out somewhere at the fuel tank.
I rather enjoy it.
Makes me forget about the problems at work when driving home in the afternoon