In the development of the Phaeton there were supposedly the legendary 10 commandments of Piech as requirements for the engineers. Two of them I quote below from the Wiki entry. Does the community know here perhaps the complete list? I do not drive a Phaeton myself, but once had the pleasure with a weekend in the W12 as a rental car. Gruesse, Jan “Initial development of the Phaeton, given the internal project code VW611, started with Piëch giving his engineers a list of ten parameters the car needed to fillill. Most of these specifications were not made known to the public, but a number of them were told to automotive reporters. One of them was the Phaeton should be capable of being driven all day at 300 kilometers per hour (186 mph) with exterior temperature of 50 °C.