Lesson: Motion and Energy in Automobile Racing

Tom Sneva set the fastest qualifying lap at the 1984 Indianapolis 500 with this car, but a broken rear suspension forced him out early during the actual race. The car's front and rear wings and underbody ground effects represent the aerodynamic advances that increasingly shaped race cars in the 1970s -- and continue to do so today.

On November 12, 1965, Goldenrod streaked across Utah's Bonneville Salt Flats at 409.277 miles per hour, setting a new land speed record for wheel-driven cars. Builders Bob and Bill Summers powered Goldenrod with four massive Chrysler V-8 engines. Although other car builders copied its sleek design, Goldenrod held the record until 1991.

The National Hot Rod Association, established in 1951 to govern drag racing, held its first national championship meet in 1955. The event took place on an airport runway in Great Bend, Kansas. Drag races run like tournaments. Two cars at a time face off, the winner advances, and the loser is eliminated. The last remaining driver earns the grand prize.

When machinist George Montgomery started racing in 1953, all drag racers were amateurs with "real jobs" supporting their hobby. This car helped change all that. Montgomery bought an old Willys in 1958 and built a dragster so successful that promoters started paying him to run at drag strips nationwide. In 1966, Montgomery became one of drag racing's first full-time professional drivers.

Bill Elliott set NASCAR's all-time speed record with this car when he qualified for the 1987 Winston 500 at Talladega at 212.809 miles per hour. By the 1980s, "stock cars" only looked stock. Underneath this Thunderbird sheet metal is a purpose-built steel tube frame, racing suspension and brakes, and a racing engine that no Ford dealer ever sold.