What exactly happens when you try to start the car? Does the engine turn over but never starts? Hitting the rear end so hard to snap your axle, you likely triggered the inertia switch in the back. It's designed to cut off fuel in an accident. Open the trunk, and check on the left side behind the tail light. There should be a hole there big enough to get your finger into. Inside that hole, you'll find a button to push down on. Push the button, and that should re-engage the fuel pump.