A passenger car on a train is like a big bus that goes on rails instead of on the road. Instead of driving yourself, you sit inside the passenger car and let the train do the work of taking you where you need to go. The passenger car has seats for people to sit on and windows for them to look out of. It's important to always stay in your seat and listen to the train conductor so you can stay safe on your journey. Just like a car, the train can go really fast, so make sure you hold on tight and enjoy the ride!