was the 1980s Alfa Romeo 75. The process was widely copied, particularly in Germany and Japan. 1980s: The Alfa Romeo 164: The design process and influence of this car is almost completely out of all proportion to previous Alfa Romeos. The 164 introduced complete CAD/CAM in the manufacturing cycle, with very little directly made by hand. In addition, the 164's styling influence continues into the present-day line of modern Alfa Romeos. Most manufacturers incorporated design ideas first expressed in the 164 into their own designs, including greater reliance on on-board computers. 1990s: The pseudo-coupé: The Alfa Romeo 156 and 147, while four-door vehicles, represented themselves as two-doors with prominent front door handles, and less visible rear door-handle flaps. Honda has used this design style in the latest Civic hatchback, and a somewhat similar idea is also seen in the Mazda RX-8 four-seat coupé and Renault Clio V. 2000s: The Brera and 159: These vehicles' design, by Giorgetto Giugiaro, have proven influential in sedan and coupé styling, demonstrating that concept vehicles are often immediately translatable into road car form, providing that initial design takes place using CAD systems. Concept cars Several concept cars have been made by Alfa Romeo: 1950s – The B.A.T. cars The Berlina Aerodinamica Tecnica prototype cars were designed by Bertone as an exercise in determining whether streamlining and wind-tunnel driven designs would result in high performance on a standard chassis and whether the resulting vehicles would be palatable to the public. Alfa 1900 Sprint were the basis of the B.A.T. 5, 7 and 9. The later B.A.T. 11 was based on the 8C Competizione. 1960s and 1970s – Descendants of the Tipo 33 The Tipo 33 racing car, with its high-revving 2000 cc V8 engine became the basis for a number of different concept cars during the 1960s and 1970s, two of which ultimately resulted in production vehicles. Most made their appearances at the Auto Salon Genève. Here is a brief list: Gandini/Bertone Carabo (1968) – Marcello Gandini expressed ideas that would come to fruition in the Lamborghini Countach. Tipo 33.2 (1969)- Designed by Pininfarina using a design already known from a Ferrari concept car. Gandini/Bertone Montreal Concept (1967) – making its appearance at the 1967 Montreal Expo, this Giulia-based concept resulted in the production Alfa Romeo Montreal road car with a variant of the Tipo 33's V8 engine. Bertone/Giugiaro Navajo (1976)- A fully fibreglassed vehicle, and