Top automotive execs aren't generally quick to admit when they get something wrong, but Marchionne isn't a typical exec. When he thought FCA had screwed something up, he was more than willing to admit where the firm went wrong.

For example, when was the last time that you heard an automaker exec ask customers not to buy the firm's products? Marchionne did. In a 2014 speech with The Brookings Institute, Marchionne said: "If you are considering buying a 500e, I hope you don't buy it because every time I sell one it costs me $14,000."

This wasn't a one-off occurrence, either. In April 2018, Marchionne made his feelings clear about the Maserati Levante's introduction during an interview with Motor Trend. "Very poor execution. I think we sucked at the launch of the Levante," he said.

As a final example, check out the video below to see how Marchionne handled the press after he, General Motors CEO Mary Barra, and Ford CEO Mark Fields met with President Donald Trump. Fields spent over a minute speaking to the media, and Barra spoke for about 20 seconds. Marchionne simply waved goodbye, offered one- and two-word answers, and then just wandered away while the media giggled at his noncommittal responses.