“Mozilla said it was unable to determine whether the brands encrypt any of the data they collect, and only Mercedes-Benz responded to the organization’s questions.”
All 25 car brands Mozilla examined failed its privacy and security tests. Nissan’s policy covers sexual activity and genetic data and lets it sell your “intelligence, abilities, and aptitudes” to data brokers and police. The industry’s privacy principles are a non-binding pledge written by the car makers themselves. You bought the car, and the manufacturer kept the data.