What about gas prices as a percentage of our income? In other words, does the gas bite of our paycheck rival the bite of yesteryear? Not even close. Given today's fatter paycheck, we pay less as a percentage of our mean disposable income. A gallon was 27 cents in 1949 -- but to put the same pinch on your wallet today, you'd pay $6.68. Gas for 1962's "muscle cars" cost 31 cents a gallon. To feel the same economic impact today, you'd pony up $4.48 a gallon.