Some fun data from the EPA data set below.
In 1981 the average US vehicle made 102 hp, weighed 3202 lbs, went 0-60 in 15.6 seconds, and averaged 20.5 mpg (436 g/mi CO2)
In 2021 the average US vehicle made 252 hp, weighed 4287 lbs, went 0-60 in 7.7 seconds, and averaged 25.3 mpg (399 g/mi CO2)
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