Why have American trucks gotten so huge recently? I’ve heard something about the laws changing but why would the laws require them to be larger?
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One of the things that a lot of the comment seem to be missing is how fuel efficiency regulations are written in the US. The regulations are somewhat tied to the vehicle wheelbase (distance between front and rear wheels) where larger wheelbase can have lower efficiency. Pickups generally are not that efficient due to size and shape so instead of improving to meet the standards, car companies made the trucks bigger so that the standards are easier to meet.
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