for road building and resulted in the creation of new and improved roads. During this period as well as the car adapting to society, there were better roads, and society began to adapt to the car. Dwight D. Eisenhower participated in the highly publicized Transcontinental Motor Convoy in 1919 and after becoming President the experience influenced the Federal Aid Highway Act of 1956 that included 41,000 miles of highways. Depression of 1920-1921 The end of World War I brought about the "Depression of 1920-21" with an inflation rate of over 20 percent, a 7 percent Federal Bank discount loan rate, and an 11.7 percent unemployment rate, that resulted in many companies going bankrupt and the automotive industry was decimated. Industry rationalization From 1919 to 1929, many dramatic changes took place. General Motors went into a financial crisis that lasted until after Alfred Sloan became president in 1923. Hudson produced the Essex in 1919 that, by 1925, had propelled the company to third in total sales behind Ford and Chevrolet. Ford was in the process of building a new plant, buying back stock, and began an 18-month process of tooling-up to replace the Model T with the Model A in 1927. In 1921 Maxwell failed and Walter P. Chrysler, formerly of General Motors, was brought in to reorganize it and, in 1925, the Chrysler Corporation was formed. With Ford out for a period, Chrysler was able to produce and market the low-priced Plymouth in 1928, and bought out the Dodge Brothers, also in 1928, resulting in "The Big Three" in the United States. There were other automakers that made it past the 1920-1921 depression only to fail during the Great Depression. Europe During the Great Depression, in Britain many small companies started in the post World War I boom failed or merged leaving six major manufacturers: Morris, Austin, Standard, Singer, Ford of Britain, and General Motors Vauxhall. A similar boom-and-bust cycle was seen in mainland Europe. Safety issues Antique automobiles and early to middle era classic cars do not have the safety features that are standard on modern cars. The most rudimentary of safety features, front wheel brakes and hydraulic brakes, began appearing on cars in the 1920s and 1930s respectively. Collecting For the average person car collecting is a hobby. A person can have a fascination with a certain vehicle, make or a history with one so seeks a particular