Etc...

Where flooring it is legal - if you can afford to buy the gas

With summer on the way and the economy booming, millions of Americans soon will hit the open road for vacation. Many of them undoubtedly will try to maximize their time by putting the pedal to the metal between Point A and Point B. Those so inclined, however, must realize that speed limits - even on the Interstate system - can vary widely from state to state both in terms of what's posted and what leeway the police will allow. For tourists driving, say, rental cars in Hawaii, the limit there is 55 m.p.h., the nation's lowest. By contrast, some states with wide-open spaces have a 75 m.p.h. limit. The states where cars may legally travel at 75 m.p.h. on the Interstate system, according to the National Motorists Association:

Arizona

Colorado

Idaho

Montana

Nebraska

Nevada

New Mexico

Oklahoma

South Dakota

Utah

Wyoming