Final answer:
If all the cars in the U.S.A. were pink, we would have a society where pink is the predominant color for cars.
Step-by-step explanation:
If all the cars in the U.S.A. were pink, we would have a society where pink is the predominant color for cars. This would be a result of a hypothetical situation in which all car manufacturers produce only pink cars and consumers purchase only pink cars. The impact of this change would be mainly cultural and aesthetic, as it would alter the visual landscape and societal norms associated with car colors.