Gas scent in car

Hello all,
I am having yet another problem with my 96 Aurora. Whenever I drives it then turn it off you can smell gas inside the car. anyone know whats going on

You probably have a crack in the fuel lines in the engine bay. They are made of some sort of plastic nylon and over time break causing fuel to leak (this is actually a dangerous situation). As I understand it GM is about to do a safety recall for this. If you get it fixed now though and keep you receipts you should get reimbursed.