Actually it is two piece but it is NOT the same as the old one...at least mine on my PP car is not. Mine has a large rubber donut for the first joint at the back of the transmission than a shaft and a bearing. Then after the middle bearing they have a universal joint instead of the constant velocity joint they had on the s197, and at the differential they have a CV joint.
The two piece shaft is a safety item. It allows the engine to go under the car in a sever front collision rather than into the passenger compartment.
Oh i see thats cool. My only complaint about the 2 piece is the top speed. After hearing stories of the drive shafts blowing up every time i do over 120 mph (legally not on the street), i get scared of it blowing up. My current 2012 pp never had a problem with it thankfully but i would definitely like to know i can go 150 if i wanted to without any fear of stuff blowing up.