Although in Germany there is no express speed limit on the highways, the lines where you can go 300 or more are quite limited and it is only feasible on certain days, since heavy traffic during the week prevents it anyway. On most highways there is a speed limit and it is usually 120 or 130, and these indications come in a red circle and often with radar control. But if not... https://piped.kavin.rocks/watch?v=7BWE2ftcF4Q