This vehicle is the oldest surviving American automobile. In the 1860s, a small steam carriage running under its own power -- without horses! -- was so startling that people paid to see it driven. It was a curiosity, not transportation. By the time its inventor, Sylvester Roper, died in 1896, new innovators were transforming horseless carriages from curiosities into practical vehicles.

Karl Benz exhibited his Velocipede at the 1893 World's Columbian Exposition in Chicago, Illinois. His automobile incorporated several impressive features for its time like a water-cooled engine, a carburetor, a gearbox, and a rear-axle differential. Benz manufactured more than 1,200 Velocipedes between 1894 and 1902, and many historians describe his "Velo" as the first production car.

Early automobile inventors tended to make one-of-a-kind vehicles. Charles and Frank Duryea had a different idea. In 1896, they established the Duryea Motor Wagon Company and built thirteen identical vehicles. Based on their second model that had recently won America's first automobile race, this car was user friendly. A single lever controlled steering, shifting, and accelerating. The Henry Ford owns the only known surviving 1896 Duryea.

Auto pioneer A.L. Riker built this electric tricycle in Brooklyn, New York, in 1896. Its tubular steel frame, wire wheels, and pneumatic tires are adapted from bicycle practice. Lead-acid batteries are under the seat, and a 40-volt, one-horsepower electric motor powered the rear wheel. Although quite successful at building electric vehicles, Riker sold his company in 1900 and became chief engineer of Locomobile, a builder of high-quality internal combustion powered cars.

This steam-powered runabout, by Locomobile, was built from designs by twin brothers F.E. and F.O. Stanley. These early vehicles were fast, cheap, and relatively uncomplicated. However, fuel needs, excessive water consumption, and other inherent problems dogged the lightweight steamer. In 1902 Locomobile began production of a gasoline internal combustion engine. The company phased out its steam-powered vehicles in 1904.

When it inspires a song, you know it's popular. This Olds was the bestselling car in America from 1902 to 1905. Automobiles had an emotional appeal. A driver in 1901 said that controlling a car satisfied "an almost universal sense, the love of power." Despite the attraction, cars were not a significant player in the transportation world. In 1903 some 4,000 people bought Oldsmobiles, but more than 900,000 bought buggies and carriages.

The E.R. Thomas Company of Buffalo, New York, manufactured this touring car during its peak production year of 1906. Known for their high performance, proved in 1908 when a Thomas Flyer won the New York to Paris race, the cars were also expensive. This vehicle sold for $3,700. The company faltered a few years after Henry Ford perfected his Model T.

This 1903 Holsman runabout could negotiate America's early rural roads. Its big wheels with puncture-proof solid rubber tires cleared ruts, climbed hills, and traveled through dirt, sand and mud. These high-wheelers were inexpensive and low maintenance. High-wheelers were especially popular with farmers until better, cheaper automobiles became available.

Two-seater runabouts like this 1906 Ford Model N were favored by middle-class Americans who could afford one. They were fast and rugged. Most runabouts featured one- or two-cylinder engines and bicycle-style chain drives. But this Ford Model N offered four cylinders and a shaft drive, plus it cost less. At $500, it became the bestselling car in America.

Henry Ford crafted his ideal car in the Model T. It was rugged, reliable and suited to quantity production. The first 2,500 Model Ts carried gear-driven water pumps rather than the thermosiphon cooling system adopted later. Rarer still, the first 1,000 or so -- like this example -- used a lever rather than a floor pedal to engage reverse.

In 1926, Alfred P. Sloan Jr., president of General Motors, sought a lower-priced companion to the Cadillac to fill out General Motors product line. He lured a custom designer named Harley Earl to Detroit for the project and the result was the 1927 LaSalle, the first mass-production car to be consciously "stylized." The stylish and affordable LaSalle marked the demise of individually designed and prohibitively expensive custom cars.

The first car to wear the Chrysler nameplate was perfectly suited to the Roaring Twenties. It was a decade of fast profits, fast music, and fast driving. A lightweight chassis and an efficient engine meant Chrysler drivers could out-accelerate Cadillacs costing twice as much. When Chrysler drivers stopped, they used modern hydraulic brakes instead of the Caddy's old-style mechanical brakes. Small wonder that Chrysler sales increased 500 percent from 1925 to 1929.

The 1932 Ford automobile combines the attractive facelift of the 1931 Model A with the world's first low-priced, cast-in-one-piece V-8 engine. Powered by Henry Ford's latest personal engineering triumph, his "en block", or one piece, V-8 engine, the 1932 Ford outperformed all other popular competitors. The vehicle's improved proportions and styling reflected Edsel Ford's, Henry's son, genius for design.

World War II produced one of America's all-time favorite vehicles -- the jeep. Soldiers loved the homely little car because it could go anywhere and do almost anything. They used it to tow artillery, carry the wounded, and deliver ammunition. When fitted with a machine gun, it became a weapon itself. The jeep came to symbolize American ingenuity and productivity to allies and enemies alike.

The 1949 Ford was revolutionary when it was introduced. After the Second World War, Ford Motor Company had been producing only remodeled designs of their 1942 automobile. Sleek and slab-sided with the trademark circle in the front grille, the 1949 Ford broke from previous ideas of design and engineering.

De Soto appealed to drivers who desired the cutting edge of technology. Soaring fins and an airy roof suggested military jet fighters. Pushbuttons replaced old-fashioned transmission levers. And De Sotos were powerful -- perfect for the new high-speed, four-lane turnpikes and the newly funded interstate highway system.

The public didn't know what to make of the Edsel's styling. Like other fashionable 1950s cars, it was big (over 18 feet long) and colorful (161 paint combinations), with four headlights and lots of chrome. But the grille -- ah, the grille. Edsel stylists said it echoed classic 1930s cars. Wise guys said it looked like a Buick sucking a lemon. After only 27 months, Edsel production ceased.

The Volkswagen Beetle was different from any American car. It looked like an insect, its engine was where the trunk should be, and it didn't have a radiator. But it recalled the spirit of Henry Ford's legendary Model T. Both cars were simple, reliable, economical, and never deviated from their basic original design. The VW would go on to break the Ford's all-time sales record.

With its rear-mounted, air-cooled engine, the Corvair was conceived as an American answer to the rear-engined, air-cooled Volkswagen Beetle. Corvairs sold well, although not as well as the more conventional Ford Falcon. But sales slipped after Ralph Nader's book, Unsafe at Any Speed, raised questions about the Corvair's handling. Production ceased in 1969.

It's an old auto industry cliche -- "you can't sell a young man an old man's car, but you can sell an old man a young man's car." It's also true. The sporty Mustang was a young man's -- and woman's -- car. The under-30 crowd loved it. But older people also bought them, often as a second car. The Mustang hit a sweet spot in the market, appealing to a wide range of buyers.

Karl Benz's Parsifal signaled the transition from the concept of a motorized carriage to a modern automobile. Unlike a motorized carriage, Benz positioned the engine in the front of the vehicle as opposed to under the seat. This allowed the car to be built closer to the ground, which provided better handling for drivers and easier accessibility.