I remember my cars when I was a kid as well, Ed It was a blast, and I enjoyed working with my father.
We had our race this morning, and my son's car came in 10th place, out of about 45 cars. He was a little disappointed, but still had fun. He got an award for best paint job - even though ours was a body sticker type thing, lol.
I think our car was fine, weight wise and design wise, but we should have worked a little more on aligning the wheels and making sure they stayed aligned. I think that's what hurt us today.
All in all a blast though.