The relationship between Bertone and Alfa Romeo reached its creative peak with the Berlinetta Aerodinamica Tecnica (BAT) concept cars which pushed back the boundaries of car design and aerodynamics: the BAT 5 in 1953, the BAT 7 in 1954 and the BAT 9 of 1955.
A relación entre Bertone e Alfa Romeo alcanzou o seu pico creativo cos coches conceptuais da Berlinetta Aerodinamica Tecnica (BAT) que levaron ao límite o deseño e a aerodinámica dos coches: o BAT 5 en 1953, o BAT 7 en 1954 e a BAT 9 de 1955.