flush mounted gas door – 1936 Cord 810 First fully boxed frame – 1938 ERA R4D (racing car) First fiberglass body – 1946 Stout Scarab Experimental (also first monocoque fiberglass body) First safety windshield – 1947 (for the 1948 model year) Tucker (popout safety glass) First hardtop – 1948 (for the 1949 model year) Cadillac Coupe de Ville, Buick Roadmaster Riviera and Oldsmobile 98 Holiday First production minivan – 1946 Chenard et Walcker CHV First limited production fiberglass body – 1951 (for the 1952 model year) Woodill Wildfire First production fiberglass body – 1952 (for the 1953 model year) Chevrolet Corvette First hatchback – 1953 Aston Martin DB2/4 First body made of recycled material – 1954 Trabant P70 First 4-door hardtop – 1955 (middle of the model year) Buick Century Riviera and Special Riviera and Oldsmobile 98 Holiday and 88 Holiday First hardtop station wagon – 1955 (for the 1956 model year) Rambler Six and V8 First production fiberglass monocoque – 1956 Berkeley SA322 First Mini MPV – 1956 Fiat 600 Multipla First fiberglass bodied convertible – 1952 (for the 1953 model year) Chevrolet Corvette First fiberglass bodied 4-door Sedan – 1970 Anadol A2 First fiberglass bodied Station wagon / Estate car – 1973 Anadol SV-1600 First factory clear-coat paint job – 1977 Lincoln Versailles First active aerodynamics - 1984 Alfa Romeo 90 First electric boot spoiler – 1986 Lancia Thema 8.32 First all-aluminium space frame – 1990 Honda NSX First carbon fibre monocoque – 1993 McLaren F1 First stress-bearing engine acting like a structural member – 1995 Ferrari F50 First Crossover – 1979 AMC Eagle First single-piece carbon fibre monocoque – 2003 Invicta S1 First fully boxed frame Pickup – 1948 Land Rover Series 1 Transmission First belt-driven automobile – 1886 Benz Patent-Motorwagen First chain-driven automobile – 1886 Benz Patent-Motorwagen and 1897 Daimler Phoenix First shaft-driven automobile – 1908 Mercedes Simplex 35 hp Manual transmissions First non-synchronous manual transmission (sliding-mesh design) – 1891 Panhard et Levassor First non-synchronous manual transmission (constant-mesh design) – 1928–1929 Cadillac First reverse gear – 1902 FIAT 8/16 HP First synchronized transmission – 1924 Isotta Fraschini 8A First overdrive – 1933 (for the 1934 model year) Chrysler Airflow First modern cone-synchromesh (on all forward gears) transmission – 1952 Porsche 356 First 3-speed manual – 1894 Bernardi 3.5 HP First 4-speed manual – 1901 Ceirano 5 HP First 5-speed manual – 1948 Lancia Ardea Mk3 First