Audi readying the four-door A7 Coupe for Detroit

Despite the numerous automakers that have dropped out of the Detroit Auto Show, others, like Audi, are promising new models that will be the envy of the other shows. On top of the unveiling of the R8 V10, Audi will present an all-new concept in the tradition of the Mercedes-Benz CLS, the four-door A7 Coupe.