Trains made by Newag were programmed to brick themselves if they detected a non-Newag workshop was repairing them.
https://news.ycombinator.com/item?id=38638865
https://news.ycombinator.com/item?id=38628635
https://news.ycombinator.com/item?id=38567687
https://news.ycombinator.com/item?id=38530885
And that was correctly perceived to be illegal by antitrust regulators.
And that was correctly perceived to be illegal by antitrust regulators.