Let me toss a totally random spoiler into the mix.
Does your Porsche have a 2-piece liftgate? In other words, can you open the top half of the liftgate by itself? I can't tell from the pictures I'm able to pull up.
If so, the shorter-hitch-to-ball thing may be a mixed blessing. I have a fairly long hitch-to-ball distance on my Explorer, and it is long enough that I can open the top half of the liftgate even when the TM is fully set up. That's handy, especially for nights when we just want to stop and sleep, but not unhitch. If the hitch-to-ball distance were 3 inches less, I wouldn't be able to do this.
Just a thought.
Bill
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