Alcar was an urban-car project designed by brothers Carlos Antônio and José Cláudio Hansen, from São Caetano do Sul in São Paulo state, presented in November 1981 as their final graduation project at the Faculdade de Desenho Industrial de Mauá. José Cláudio, the elder brother, had already spent several years as a modeler at General Motors, including work on the bodywork of the Fittipaldi brothers' Formula 1 car, experience that…