The Mercedes-AMG GT4 is a true racing thoroughbred that has undergone countless hours of track testing. Can you guess how many kilometers of testing this beast has undergone prior to its release? #AMGCustomerRacing #AMGGTFAMILY #GT4 #MercedesAMG #Mercedes #AMG #AMG🔥 #DrivingPerformance #Passion #Luxury #CarsofInstagram #InstaCar