The Volkswagen Phaeton was the Swan Song of then VAG CEO Ferdinand Piëch, son of Ferdinand Porsche. To send himself off, he wanted to show the world, and VW themselves, what they were capable of.

The big poster headline of this engineering marvel was the requirement, and it's subsequent ability, to maintain a speed of 186MPH "all day" and keep the cabin at 72°F with ambient temperatures of 122°F