In a recent story about the 300SL Gullwing, we applauded Max Hoffman, the European car distribution and marketing pioneer, for his efforts in pushing manufacturers to produce stunning icons including the BMW 507, the Porsche 356 Speedster, and the aforementioned Merc. With him on his mind during this story, an exploration of the differences between BMW and Porsche hybrid technology, we couldn't help but wonder what Hoffman might think of two enormously fast, enormously technological, yet also downright enormous crossovers from two of his favorite brands. It would certainly be one of those "Oh, brave new world" moments. But under the skin, are the superficially-alike Cayenne S Hybrid and the X6 ActiveHybrid really one idea with two forms?

FULL STORY