Post 1: Mousetrap Vehicle

I think the most critical components to incorporate into the vehicle would be a light and stable chassis. If the chassis isn't light that could cause too much friction but if it's too light then it might break. I think another critical component would be too make sure there is friction with the wheels and the ground but not too much friction. There also needs to be friction with the wheels and the axel but if there is too much the wheels won't turn very well. You need to make sure everything is just right so that the vehicle will perform it's best.