Cadillac Ciel Concept Celebrates the Journey PEBBLE BEACH, Calif. –   Cadillac today unveiled the Ciel concept, an elegant, open-air grand-touring car inspired by the natural beauty of the California coast. The Ciel – pronounced “C-L,” the French translation for sky – is a four-seat convertible that opens a new chapter in Cadillac’s design and product ascent, pushing the brand’s Art & Science philosophy into a new stratum. Ciel is…