I had a car crash last night. I was hit from behind at around 20mph. I was at a red light and was pushed forward ( hand brake wasnt on) To look at my car the bumper is scratched and has come away a little from the car near where the boot shuts. Boot can still be opened and closed. I have a Fiat Punto 5 door and its 4 years old. Could there be any damage that I cant see?