This is awesome! I love it. Takes me back to my childhood days when me & my mates created a similar track in my back yard. In those days (the early 70's) there were no diecast sprint cars, so our race fields were mainly "stock" hot wheels and matchbox cars. We had to make the engine noises ourselves too! Anyway, keep up the good work!
It's called stop motion. Basicly you take a picture, move the cars, take a picture and do that until all the pictures are done. Then you upload all the pictures into a video