What data is collected and/or transmitted?

The full extent of what information carmakers collect can vary but can include:
Engine performance, including component maintenance of failures
Seat belt use
GPS location and speed
Driving behaviour, such as erratic acceleration and excessive braking
Occupant details, through sensors in the seats, seat belt and airbags
Mobile phone use and personal information stored on the phone
This can be used to create a detailed profile of driver behaviour and habits, real-time vehicle location and direction, or the use of communication devices.

Connected Technology
Car brands offer connected technology in different ways, including directly or via a mobile app. We've listed some popular in-car infotainment systems below. Some of these may simply be streaming apps from your phone and not collect any data. Some may be capturing data that stays in the car and others might transmit data back to a manufacturer. It's not always clear how your data is used, so you might like to talk to your dealer about how they work.
Audi Connect
BMW Connected drive
Chrysler Uconnect
Ford Sync
Kia Navigation
Lexus Enform
Mazda Connect
Mercedes-Benz Command
Mini Connected
Mitsubishi Smart Phone Link
Nissan Connect
Renault RLink
Toyota Link
Volvo Sensus