The platform, dubbed “Omega”, would be able to handle 6 or 8 cylinder powerplants, as well as all-wheel drive and hybrid systems. Interestingly, a diesel would not be part of the plan, despite their popularity in Europe, where Cadillac is looking to grow sales. Cadillac is also rumored to be looking at a super-premium sedan to rival brands like Rolls Royce, but this seems about as likely as a new Buick Grand National being built off the Regal platform.