Been to the garage for an estimate. New bumper, trims, number plate, etc only required. About £700. See what the insurance says. Mind you, a mate of mums reckons it will be about £3000 just for the bonnet damage on the Merc coupe! It appears the problem for him was a steel beam that protects the back of a 307. The guy at the garage seemed to expect the amount of damage to the other car.