The missus had an accident in my 13 year old a4 avant with 172 k on the clock that just had it's cambelt replaced last month. The lad has admitted it was his fault and the mudflap has ripped off where there was a bit of rust there's now a hole and some bent metal. The garage has rang and said it's needs a new panel. So the question is will they repair it or write it off? Roughly how much would my car be worth as mechanical it's sound?