Cadillac CT6 underpinnings could support a big Buick

The Cadillac CT6 luxury sedan uses “a mixed-material architecture and is very flexible,” says Mark Reuss, GM's product-development chief. (REUTERS)

April 14, 2015 05:00 AM

NEW YORK -- Now that General Motors has christened its large, rear-wheel-drive platform (code-named Omega) with the debut of the Cadillac CT6 sedan, what other cars might go onto that same foundation?

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