Well, just speeding past a camera (140 in a 120).
Sixt sent me the letter they received from Brandenburg police, I was able to log onto their website and confirm it was me on the photo.
Had to pay via a bank transfer, so a bit of a pain, but you pay the price..

Was surprised to see it hit 270, as I thought even S-line cars were limited to 250, but that was still overkill for my route.
Sadly not all Sixt locations have this sort of inventory