bought the car filled the gas tank up, drove 2.5 hours home to a very strong on 1992 Audi 100 Quattro

smell of gas and 2inches of gas in the spare tire space in the trunk, afraid to drive it. what could this be?

Asked by for the 1992 Audi 100 Quattro
the filler neck may be leaking. get to a shop and have them check this for you.