Why do you need more space above your vehicle, overhead clearance, than a car driver typically thinks about?
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Correct answer to question 140 (General Knowledge): A taller commercial vehicle can strike overhangs, signs, or branches that a car would pass under safely
Why
A commercial vehicle's greater height means it can hit an overhang, sign, or low branch that would clear a car with room to spare, so overhead space is part of managing space around the vehicle.
Updated: November 2026