I have two wheels and handlebars. People pedal me to move. What am I?

I have wheels but I’m not a bicycle. I carry many people but I’m not a bus. I can fly but I’m not a bird. What am I?

I travel on tracks but I’m not a runner. I have many carts connected together. What am I?

I have wheels and a horn, and I love to go fast. I take you places, near or vast. What am I?