Generally a midsized is smaller than a luxury car. Economy is great for traveling with maybe 2 people at the most with their luggage, depending on how much you have. Midsized is for about 4 people and maybe a week's worth of stuff at the most. Economy is for people who need good gas mileage and...
because we actually do save money. Your two cars are just exceptions to the poor gas mileage. Probably cause they were a little bit heavier and bigger. but anywayz, my 94 civic gets about 35-40 miles to the gallon. i just have to fill up more often b/c i drive farther than most people.
It depends. Are both cars that are racing stock, have one driver and the tires are pressurized to their best? You answered your own question, but you would have to try it. I would suggest a dry acceleration race starting off an even paved stoplight road. Spec wise, both cars have been tested...