ADAC 是欧洲最大的汽车协会，2100万会员，人家公布的数据肯定比一个车主有说服力

The ADAC, officially the Allgemeiner Deutscher Automobil-Club, is Europe's largest automobile association. The ADAC is the largest verein in Germany, with around 21 million members. Its headquarters is located in Munich. Its original and most well-known service is roadside assistance.