When you click on the name, you get the "Pannenstatistik". Which sounds like it is how many cars insured by ADAC had a problem on the road. The chart on the "T

When you click on the name, you get the "Pannenstatistik". Which sounds like it is how many cars insured by ADAC had a problem on the road. The chart on the "TÜV-Report" seems to be what percentage of cars turned out to have a problem when routinely checked in a garage.