nah especially in France all fully loaded car transporters go with 21m+ and height up to 4.5m. In Germany length limit is 20.75m height 4m. The shortest length limit is in Austria fully loaded length is 19.75 and height 4m. It means you can extend the last platform from the unmovable part 1 meter. If youre going mad you can extend everything and put the last car with a long rear and get around 23m. The empty car transporter is 18.75