The original pink Porsche coolant was G12. Then there was G12+, G12++, and now G13. They're all compatible, with G13 being the most recent and what you'll find in a new Porsche/VW/Audi.
I got a ton of it on clearance last year from AutoZone, and I still have enough for one more fill - just in case.
If I hadn't found such a good deal and stockpiled the stuff, I would have just bought Zerex G40 or Dex-Cool.