What is interesting about it? It does not making sense to me. E.g. one should see German reaction in VW case and plenty of them were pissed on US fines. Same with fine on BP in US.
Of course there was some monetary incentive behind it (Hoping that you could get some money out of the case for your VW, too) but generally there really wasn't any "The US just wants to get money from german car makers" sentiment.