Transportation guessing game

a railway system in a city. What is it?

It's a mean of public transport. It travels along a fixed route. What is it?

a flying vehicle with wings and one or more engines. What is it?

a large boat that carries people or goods by sea. What is it?

a road vehicle with an engine and four wheels that can carry a small number of passengers. What is it?

a car with a driver that you pay to take you somewhere. What is it?

It has two wheels, with one seat for the driver and one seat for the passenger. It's driven by engine. What is it?

It has two wheels. You need to use your feet to ride it. What is it?