Directly behind the firewall VS sometimes instals a fuel filter... sounds like it may have come loose. I would suspect that is where the fuel is coming from if you are seeing gas leaking in front/ inboard of you driver side rear wheel.
how to check-
1. Looking into your engine compartment you should see your fuel line going through the firewall. You want to look directly behind this location of the fire wall.
2. Then, come around and get under your car, forward of the rear drivers side tire/ wheel. ( may require jacking it up.. be safe, use a jack stand and block your tires).
3, look on the other side of the fire wall. You will see that fuel line coming through, follow the fuel line ( about 10”) and you will see a fuel filter dangling there. The fuel filter is installed between the fire wall and the túnel.
If you find one there, and it’s the source of the leak- tighten the clamps. And if it’s one of the beefy metal ones, you may want to brace the filter to the firewall to keep it from swinging around/ coming loose in the future.
Many of these cars come with the flimsy plastic fuel filter which can easily crack if it’s hit by road debris /a rock in this location— Speaking from experience. If you find a plastic one in this location you may want to consider replacing with a metal fuel filter from your local auto supply store ( autozone, Napa, etc..).
...dangerous place for a leak.
hope this helps,