NO
This sign means: No access for horse riders, cattle, wagons, motor vehicles with speed less than 25 km/h and microcars, cyclist, riders of motor-assisted bicycles, mopeds and drivers or vehicles for disabled people.
YES
Always have a clear view through your windscreen and front side windows. In addition, as a driver, you must have sufficient visibility into the road section next to you and behind you. You can create this with both exterior mirrors. Of course, it is wiser to de-ice the rear window, but it is not forbidden to drive.