id rather they kept low gas mileage, that combined with the gas prices today would add up to a lot mroe moped riders.
anyways ive seen this kinda of argument a TON. never gets anywhere. american cars would have been fine (no offense intended against your argument) but with the gas prices now they would quickly realize that gas mileage would be a bigger factor than back then, plus now they are making laws about gas mileage and emissions and such so they would have gotten quieter and better with gas mileage anyways.
basically, who cares, everyone has their own opinions for cars and your arguing wont change a thing.