[Perfectlap]

well that wouldn't be unexpected if they did use CGT front end and back end.
They did it very successfully with the Boxster and 996.
I highly doubt they would use the Cayenne for this new Panamera.
Using the 987 or 997 front end wouldn't be very exciting.

And coming up with an entirely new front end would be very expensive (making the car well north of $130,000) and Porsche, as the most profitable car company in the world, aren't into passing up an oppourtunity to use an existing design/manu. for max profits, particularly on their first Sedan. The Porsche brand is at its record high in revenues, profits and prestiege in the car world, this car needs to be a success. A Porsche SUV was controversial and so far its been a success albeit an enourmously late one in SUV scheme of things.

I'd be willing to bet that these CGT-esque renditions are pretty accurate.