This is something I can confirm is true. In the i (ndependent) paper U.K. today there is a two page spread about vehicle hacking.
They say criminals can hack into your electronic ignition, but I have it on good authority that the police and Mi6 can switch your vehicle off on the road if they don’t like where you are going. Even accelerate it. Criminals yes, but they are the leaders in crime. They receive the details of every new vehicle on their roads.