The Porsche Intelligent Performance slogan was introduced when they came up with the 911 GT3R Hybrid .
If you go to the site where you took that quote from, you will find that every car pictured is a Porsche Hybrid
http://www.porsche.com/microsite/int...mance/usa.aspx
Porsche are not selling their Hybrid Systems, but rather their cars equipped with their hybrid systems.
BTW - The word Hybrid does in fact appear on the car (look above the door and is also part of the name on the inner front fenders). I do however get what you are saying.