I'm a bit iffy on EV vehicles that tend to have more snooping sensors. Most new vehicles sold today have black box that records crash information, but many go far beyond that. GPS and services like "OnStar" are notorious for collecting wide array of information for big data. Unlike consumer credit and cell phone service providers there are very few laws protecting our privacy in your car. You might think the GPS is only tracking consumer habits, but consider how location data can be used to identity (infer) your religious and political affiliations -- I see that you dine at Chick-Fil-A, shop at Turners, and visit Triple B Clays on weekend. Mark that guy with a red flag!
On a more basic (non big data) level, consider if you set your home address on your car's built in GPS and someone steals your car, they might follow the GPS to rob your home. So instead of using your real home address, set it to the supermarket across the street.
If you think it'd be easy to order a location tracking jammer on ebay, be aware that you'd be breaking Federal law with possible fines and jail time.
