With a Nordväl dashcam, you can record the situation on the road while you drive. You can mount the camera on the windshield of your car or attach it to your dashboard. If there's a second camera, you can mount it to your rear window. Some dash cams have a motion sensor, so the camera automatically starts recording when it detects unexpected movement such as a collision. That way, you're ensured of evidence in case of an accident.