About 31 million alloy wheel rims in Germany are damaged either by kerb scratches or corrosion damage. Not only the appearance but also the value of the affected car suffers and can become a great annoyance especially in the case of leased vehicles. The vehicle inspection sticker is also at stake. Because superficial, harmless looking notches can cause cracks that have fatal consequences for driving safety. This offers car repair shops the possibility of becoming a real problem solver for customers and helps to secure immense competitive advantages especially for diamond cut alloy wheels.