weight distribution does not affect top speed. transmission does
not play a part in determining engine top speed like the 3 factors
i've listed do. instead, a 100% efficient transmission would be
able to allow the car to travel to it's theoratical top speed, and
the actual top speed is otherwise determined by how efficient the
transmission is and the operating limits of the transmission. for
all theoratical calculations, we always assume transmission to be
100% efficient, or that the transmission efficiency remains
constant, if we already have a set of experimental data to work
with.