No sports cars are automobiles designed for family use.
No sports cars are vehicles intended to be driven at moderate speeds. All automobiles designed for family use are vehicles intended to be driven at moderate speeds.
∀x (SportsCar(x) → ¬IntendedToBeDrivenAtModerateSpeeds(x)) ∀x (ForFamilyUse(x) → IntendedToBeDrivenAtModerateSpeeds(x))