Introduced on Tuesday, April 15: 2015 Mercedes-Benz S63 AMG S 4Matic Coupe

What is it? What happens when the AMG performance division of Mercedes-Benz starts tinkering in the engine compartment of the new S-Class Coupe.

Is it real? In about July, it will be. Mercedes-Benz and AMG are showing the S63 in New York about three months ahead of its North American on-sale date, so dealers have ample time to get out their order books and start filling them.

What they said: “The new S63 AMG 4Matic Coupe is the latest dream car to augment the Mercedes-AMG model range,” according to press materials. “Power and sensual purity combine to give the vehicle irresistible presence and breathtaking performance. Equally impressive is the combination of outstanding driving dynamics, advanced lightweight construction and groundbreaking efficiency.”