It's not the first time you hear about a flagship RWD sedan coming from Cadillac. However, you might have believed that the hard times, that seem to have settled in permanently for some, would have made GM have second thoughts on a new project. Apparently, this is not the case. In a recent interview, Ed Whitacre said that he had instructed the brand to build a true, full-size flagship above both the CTS and the upcoming XTS.

However, Cadillac->ke18 has not made a final decision on the future car. It was supposed to be built on the Zeta platform (same as the Camaro), but he said this was heavy and dated, so it's more likely that we will see the new sedan built on a stretched version of the CTS’s Sigma platform.

Cadillac is also working on a new ATS model->ke3619 based on a shortened Sigma platform called Alpha that will compete with models like the BMW 3-Series->ke290.

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