> Assumes wheels are solid cylinders I'm no expert but I would say that wheels are closer to a ring. You're underestimating the moment of inertia of the wheels

> Assumes wheels are solid cylinders I'm no expert but I would say that wheels are closer to a ring. You're underestimating the moment of inertia of the wheels by a factor of about 2 by doing this. Might be well enough to throw off your conclusions. In fact if I read your spreadsheet correctly this would bring the rotational energy to about the same as the translation kinetic energy.