My backyard dirtrack

I recently had a thought about this sandpit in my yard, and decided that I was going to put a dirtrack through the middle of it. I was quite succesful, as there was a pit in the middle of it anyway. I just built a bridge across it, put a ramp or two in, and there I had it. As well as going across the sandpit, there's a concrete part and a small grass bit. Take a look at the pictures to see what it's really like!

By the way, the track changes A LOT! This picture does not look quite what it does right now, but it's about the same.