Narrator: In the 21st century, we have many ways to travel. One of the popular ways to go is by automobile. Whether it's a short drive to the supermarket, or a long trip down the highway to visit family in another state, you'll see millions of people in automobiles. Nascar Racers: *Going around the Daytona Speedway* Narrator: But people also use cars for racing. Nascar is a popular...