An end bell loosening itself from the can in a surface model like a car is nothing to worry about too much. In a helicopter or plane it could mean a total loss.
My truggy had no acceleration any more and felt like i had brakes engaged. My eagletree logger recorded the following data.
You will notice those big amp spikes at the end of the run and a rise in motor temperature.
This improvement in motor design tells me i'm not the only one experiencing this issue. I wonder if the new design will prevent the end bell to come loose again in "minor" crashes or if i should secure it somehow.