In front of the hotel there is a huge parking lot. There were brake sleepers installed during the day some time ago, without which this was announced or indicated with signs. The brake sleepers are black and have the same color as the roadway. When I drove back to the parking lot in the evening, I ran over the almost invisible threshold at about 40 km/h. The bang was huge loud and the windscreen wiper was activated. But I can’t see any damage to the car and it’s also “normal”. Nevertheless, I’m kind of worried that the car might have been damaged. How do you see it? Can I check something myself? Or am I worried about something?