Kazma vs Mareš or 1/10

In April 2018, a popular Czech host Leoš Mareš made a bet that he would ride in a Trabant for the whole month. If anyone sees him in another car, they would get his Ferrari. A couple of weeks later, he stopped at a traffic accident to help a man stuck in his car. He got behind the wheel and reversed a bit. At that moment, Kazma and the One Man Show team ran out of the bushes crowing with delight that they won the Ferrari. A massive media storm broke out, for many, however, with a quite unexpected ending. Who was on whose side and what was the main reason for Kazma's attempt to win Mareš's Ferrari worth 8 million Czech crowns? (JuniorFest)