1909 – General Motors Buys Cadillac
General Motors acquired the Cadillac Automobile Company on July 29, 1909, paying approximately $4.5 million for one of America’s most respected luxury automakers. Cadillac had been formed from the remains of Henry Ford’s second failed automobile company and quickly earned a reputation for precision manufacturing, quality and refinement. By bringing Cadillac into GM, William C. Durant gave his young corporation a true prestige brand, positioned above Buick and the company’s other makes. Cadillac later became known for major engineering achievements, including electric starting and lighting systems, V-8 engines and automatic transmissions, helping define American luxury motoring for much of the twentieth century.
1916 – Nash Motors Is Founded in Kenosha
The Nash Motors Company was founded on July 29, 1916, after former General Motors president Charles W. Nash purchased the Thomas B. Jeffery Company of Kenosha, Wisconsin. Jeffery had produced the Rambler and built a substantial automobile factory in Kenosha, giving Nash an immediate manufacturing base for his new company. The first Nash-branded automobile followed for 1917, and the company quickly built a reputation for sensible engineering, value and reliability. Nash later became known for innovations including weatherproof ventilation, unit-body construction and compact cars, eventually merging with Hudson in 1954 to form American Motors Corporation.
1923 – Homer B. Roberts Opens Roberts Company Motor Mart
Homer B. Roberts formally opened Roberts Company Motor Mart in Kansas City on July 29, 1923, creating one of the most significant Black-owned automobile dealerships in early American motoring history. More than 3,000 people reportedly attended the opening, reflecting Roberts’ standing as both a businessman and community figure. Roberts had started by selling used cars to Black customers who were often ignored or mistreated by white-owned dealerships, then expanded into new-car sales, including Oldsmobiles. His success challenged racial barriers in the automobile business and made Roberts Company Motor Mart an important example of Black entrepreneurship during the early decades of mass car ownership.
1973 – Roger Williamson Is Killed at the Dutch Grand Prix
British racing driver Roger Williamson died on July 29, 1973, during the Dutch Grand Prix at Zandvoort. Williamson’s March-Cosworth crashed, overturned and caught fire during the race, leaving fellow driver David Purley to stop and attempt a rescue while the event continued around them. Purley’s desperate effort became one of Formula One’s most haunting images, underscoring the inadequate emergency response and fire-safety standards of the era. Williamson was only 25 and competing in just his second Formula One World Championship race. His death became part of the painful safety reckoning that gradually changed the sport in the decades that followed.
2011 – Obama Announces 54.5 Mpg Fuel-Economy Agreement
President Barack Obama and major automakers announced an agreement on July 29, 2011, aimed at raising fuel-economy and greenhouse-gas standards for cars and light trucks through model year 2025. The headline goal was the equivalent of 54.5 mpg by 2025, up from the 35.5 mpg target set for 2016 vehicles. The agreement was intended to cut tailpipe emissions, reduce oil consumption and save drivers money at the pump. However, the original target did not survive unchanged. The Trump administration weakened the standards under the 2020 SAFE rule, the Biden administration later strengthened rules for subsequent model years, and by 2024 NHTSA’s newer rule projected an average light-duty fleet target of about 50.4 mpg by model year 2031. In 2025 and 2026, the rules again faced rollback efforts, showing how fuel-economy policy has remained one of the most contested parts of modern American auto regulation.
