BGONGIPIAW
(Best Game on Newgrounds I've Played in a While)
This was a great idea, and really fun. I wouldn't listen to those that claim that this game is too easy, because I think the skill set is perfect, and the learning curve is perfect as well. There are a few people on this website that claim every game they play is too easy, probably because they self-proclaim themselves as gaming gods. And we all know about the kind of people the self-proclaim themselves as anything. Don't listen to them, this game is perfect the way it is, and the only thing that it needs is a sequel. Hopefully in the future we will see a Grid 32.
On a side note, I commend you on your programming abilities. For people like me that struggle with the most basic forms of it, your abilities are astounding. And don't be modest about it, even though I'm sure you are.