Currently, the price of a gallon of gas is about $4.00 per gallon nation-wide, though many areas are paying much more.

Because of rising gas prices, sales of smaller, more fuel efficient cars have risen in demand in recent months. Honda saw sales of its Fit model rise 73% in April. Ford's new Fiesta sub-compact was up for the second straight month. Chevy is seeing strong demand for its new Cruze compact car. And Hyundai, which has been heavily advertising that four of its cars achieve 40 mpg-plus in highway driving, is doing well.

Gas prices will likely…