i only use the car at weekends, i dont tailgate. i do 20,000 plus miles ayear in my 406 estate on motorways and i would say i get about 6 stone chips ayear that damage the paintwork. I think acra is right, and its down to the coat of paint being so thin. and as it's Red (yellow too) there is no lacquer on the paint like the other colours, to give it that extra clear coat that will help stop the stone chips chipping the colour layer of paint.