racing

I have a math problem for any one who reads this. On saturday the 14th of this month a friend of mine met me in Bakersville, Ca. and we went to the Bakersville speedway to watch the race. Now this is a dirt track which is 3/8 of a mile. In one of the races was the lighting mini cars and at one time they went around the track in 13.5 seconds and my question is how fast were they traveling. I know they were moving on. Any way it was a lot of fun. We are going to try to catch some other tracks around the country this year. If any body knows of some good dirt tracks please respond.