*Caffeinates*
Let's have a Minifact to start off the day.
In 1940, Germany began their occupation of France. The Nazi regime forcibly took control of manufacturing in the country like they'd done with everyone else they occupied, shuttering plants that opposed them or otherwise weren't useful and forcing the rest to build their equipment. Citroen chairman Pierre-Jules Boulanger didn't want to, but had no say in the matter. He was to build his company's Type 45 trucks for the Nazis, end of discussion.
So Mr. Boulanger decided that while he had to build the trucks, he wasn't about to let the Germans have a free lunch. He quietly sabotaged the effort in a number of ways, including telling his staff to work as leisurely as possible while appearing to be busy. But his greatest sabotage was in the design. Mr. Boulanger had ordered a 'Nazi spec' version of the Type 45 when the Germans took over. This "special" version built for his oppressors was identical in every way to the ones he normally built, except for one small difference - the oil dipstick on the German trucks was moved slightly lower compared to the normal versions.
Citroen's engineers had relocated the dipstick strategically. They left
just enough oil so that the engines would wear out quickly enough to be of no use to the Germans, but also run long enough that they wouldn't suspect a thing. When the Germans took delivery and did their routine maintenance, they would check the oil and see that all was well when the truck was actually low on oil. Then after a few thousand kilometres of running, the truck engines began seizing when the Germans were in the middle of operations, leaving their troops and supplies vulnerable.
Towards the end of the war, Mr. Boulanger would be highly pleased to find his name on an "Enemies of the Reich" hit list when the Parisian Gestapo HQ was raided. Following the war and just before his death in 1950, PJB would oversee the production of a multipurpose car that could go anywhere, carry anything, and be driven by anyone. This project of his was nicknamed the
Tres Petit Voiture, or TPV, which translated to "very small car" - the foundations of the company's iconic 2CV.