I just found this site while searching how to build a speedometer, because I wanna see how fast my R/C truck I just bought can go... http://www.zipzaps.homestead.com/ Here is a page he made, and I saw a picture, and then read the writing. It said "This is a Bit Char G..." But, it ACTUALLY is a Char-G. Just scroll down a little here: http://www.zipzaps.homestead.com/cars.html