Even before that, in the 90s you could plug into the Car Area Network (CAN) [where you plug in to get the codes for repair]. Then issue commands to brake, accelerate, reduce throttle, flood the engine, etc. When you press the gas pedal its not connected to a mechanical throttle linkage, it sends a packet of data across the car's unsecured network. Anything plugged into the CAN bus can issue commands that will be accepted. So, you could create a wireless controller that plugs into the diagnostic port and issues commands. Car Insurance companies even have things you plug in there and it records telemetry data and reports it via cellular signal. If that shit is two-way then you get a reduced rate, and hackers can control your car remotely even if it has no "carputer" smart car shit like today's newer cars (like the one in your vid).

FBI has warned automakers that it needs to implement security controls in their CAN, and that it's dangerous AF for them to be connecting shit to the internet while reading data out of the non-encrypted car network. "Oh look, I can start my car to warm it up in winter with my smart phone" good job moron, that means EVERYONE with an SDR and a laptop with Kali Linux can run that script too.

Cars started being succeptible to remote control in the mid to late 80's. Now that we have parallel parking (control of steering wheel), the system is complete. Can speed up, slow down, brake, turn, shift gears if automatic (all new cars are - hard to find one that's not, "manual" is still digital gear selection in most new cars, there's no physical linkage to transmission).

Real spooks drive 70's cars, or older. Distributor cap FTW.