We took in a ginger and white male he too had been thrown from a car. An RSPCA inspector brought him round to us one Sunday. He is in his new home and very happy.
Luckily the only physical injury he seemed to have was a small graze on his nose. Because I am rubbish thinking of names here, I called him Chuck.
Unfortunately the lady was not English who saw him thrown out, and she didn't manage to get the registration number.