One more story on Porsche markups, since this thread got me started.
Simple transmission oil change in a Cayenne is $1800. Of which, close to a grand is oil (the transmission takes 9L of ATF, which Porsche sells for like $90 per 1L, so 9x $90 = $810).
Now, you can get
the very same oil from the OEM Porsche supplier, which is FEBI Bilstein, in the very same bottle (but with a FEBI sticker), with the very same part #, for ... $10 per 1L ! That is $90 vs $810. 9x less (nine times !!!).
The rest of the parts (oil filter / pan gasket) are $200 from Porsche. But you can go to Toyota, which happens to be using the very same Aisin gearboxes that Cayenne does in various Toyota / Lexus models, where those parts are like $60 total. So we are talking about $60 + $90 = $150 in parts + labor.
While at Toyota, you can probably flush the transmission here as well (or go to a Porsche indy) for like $100, so that would total $250. Or go to Porsche stealership and fork out $1800

For the very same job, using the very same parts.
No wonder, they can afford to give you the invoices nicely folded in an envelope, lol.