In fact, Mozilla alarmingly reports you’ve got a data-brokering spy there too. Their survey of twenty-five top car brands found cars are by far the worst offenders (more than your phone, doorbell camera, or the fridge) when it comes to your privacy. Tesla was rated worst and was followed by Nissan, which gathers information including on sexual activity – but then Kia claims to do something similar. Once collected, 84% sell the data, and 56% are prepared to provide your data to law enforcement for just a polite ask. Check the reviews.