I have a 1988 420 sec coupe which overall is in excellent condition but the paintwork is looking a bit lack-lustre and has a few minor scratches here and there. I recently had somebody drive into the back of me and need a bumper repair and when I took it to a body shop they suggested that I should have the whole car resprayed. I have since had conflicting advice from fellow classic car owners and they are advising me not to have it resprayed as it is essential to keep as much of the car original as possible so as not to devalue it. Does anybody else have any views on this? What advice would you give?