go cart company breached the intellectual property rights of Nintendo by marketing the tours with Mario Cart costumes and characters, got sued, and lost

 Earlier this, year, MariCar was ordered to pay Nintendo $50 million yen ($483,000) for violating its IP rights.

MariCar’s IP breach was particularly noticeable because it let drivers dress up as Mario Kart characters. Nintendo also felt its name could be sullied by safety issues, which proved to be a valid concern after several accidents.

MariCar lost the initial judgment and was ordered to pay 10 million yen ($97,000) and subsequently made the perhaps ill-advised move of slapping “unrelated to Nintendo” signs on the cars. Following an appeal, the judgment was boosted to 50 million yen.

https://www.autoblog.com/2020/12/28/mario-kart-real-life-judgment-japan