American muscle is apparently quite popular in Germany actually - and there is more than one Hellcat that routinely runs the 'Ring. I've seen several videos featuring them (I'm sort of a Nürburgring video junkie in the wee hours - hey, I have a lot of time to kill in the middle of the night when normal people are sleeping).
One of the best is a series of in-car videos of a Hellcat Charger. Search for them, they're easy to find.
One fellows' channel on YouTube has a bunch of them - his channel is called "
Bavarian MOPAR Works".