According to Cadillac, "the CT6 will expand the Cadillac range upwards – meaning it will not replace any current product." But that’s not the biggest news here. Newly hired CEO Johan de Nysschen is changing Cadillac’s entire naming structure for all of its models, much like he did at previous employer Infiniti. Basically, "CT" will be used to designate every model, with the number indicating the relative size and position of the model within the lineup. For example, the CTS could become the CT4, and the ATS the CT2, though neither name is confirmed yet, but both would make complete sense. No word yet whether the Escalade SUV will also be renamed.