Car going around a turn
Note that the maximum speed (without slipping) around a turn depends on the coefficient of friction, the amount of gravity (not usually under our control), and the sharpness of the turn (radius).
If we go at a slower speed around the turn, friction will be less than the maximum: Ff < mFc.
There is one other thing we can do to go faster around the turn - bank the road! How does this work?