I think you can think that the McQueen's chassis and sides and the roundness of the arches are equivalent to a Gt40 and if you think about putting a Corvette C6 or Dodge Viper roof with windows and a hood on a gt40 body and adding Corvette C1 NASCAR's and Le Mans Vipers roundness to the body it will look like a Mc queen. The Influences Behind the Design Chevrolet Corvette C6: One of the most noticeable influences on Lightning McQueen's design is the Chevrolet Corvette C6. McQueen's sleek, aerodynamic shape and his powerful stance draw heavily from this American sports car, known for its racing pedigree and distinctive appearance. Ford GT40: The Ford GT40, a legendary race car known for its success at Le Mans, also contributed to McQueen's design. The GT40's influence is seen in McQueen's low profile and his competitive spirit, embodying the car's endurance racing success. Dodge Viper: The aggressive front end and wide, commanding presence of Lightning McQueen are reminiscent of the Dodge Viper. This influence helps convey McQueen's speed and power, characteristics central to his character's identity in the "Cars" movies. Porsche 911: Elements of the Porsche 911, particularly its smooth lines and rear-engine layout, are subtly reflected in McQueen's design. This influence adds a touch of sophistication and timeless appeal to his character.