Last month a study found that on average seat widths and the thickness of their padding in cars hadn’t changed much over the past ten years despite increases in the size of the average driver’s waistline over the same period. This is also the case with seatbelts. In fact, federal standards for the length of a seatbelt in countries like the U.S. date back four decades and only require that belts are able to accommodate at most a 215-pound man.
Some carmakers do offer bigger belts or extenders but many don’tt because of concerns about effectiveness and liability
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