The Cadillac CT6, introduced in 2016, represents a bold attempt by the American luxury brand to reclaim its position in the full-size sedan market. This rear-wheel-drive flagship aimed to blend performance, technology, and comfort in a package that could compete with the best from Europe and Asia. While the CT6 offered a range of powertrains throughout its lifespan, including a potent twin-turbo V8 known as the Blackwing, its journey was not without challenges.