What must you watch out for when you drive into an underground car park?

You answered correctly because all three points are important when driving into an underground car park in Germany. First, your eyes need time to adjust because lighting inside is often dimmer than outside, so be cautious and reduce speed. Second, pedestrians frequently use the same lanes as vehicles, so watch carefully and be prepared to stop. Third, entrance and exit ramps or narrow spaces can potentially damage your tires if you are not careful, so drive slowly and attentively. Keeping these factors in mind ensures safety for both drivers and pedestrians.