I have a 99 GTS with PS2 tires. The road outside my house is paved, but there are really tiny pieces of gravel on it. When I leave my house, no matter how slow I drive, I hear those tiny rocks constantly being picked up by the tires and hitting the underside of the car. I also noticed the doors, on both sides, have tiny little marks in the clear coat, which look like partial thickness chips. I’m suspicious that the rocks are being picked up by the front tires and hitting the doors. I always have the Little Rocks sitting on the exhaust covers/side sills as well. Anyone else have this problem?