Cayennes used for towing larger trailers are using a Hensley or Propride connection system.
No sway.
No tail wagging the dog.
No problem.
Not quite. The Hensley is a fantastic hitch but it will not solve all problems and does nothing if you exceed the receiver rating. I speak from experience towing a 26' TT with a short wheelbase V8 4Runner. I started with an Equil-i-zer hitch and had some sway problems. Bought a Hensley which helped a lot but did not eliminate the sway completely. The TT no longer swayed separately from the TV, rather the two swayed and got pushed around together. The sway was no longer through the hitch, it transferred to the soft tires and the next weaker points.