You can have a car equipped with onstar shut off on command by police (they advertise such for anti theft ). What else can one control?
I’ve read that it’s very rare for an accident, even one involving high speeds, to result in the type of intense fire that this one did.
Whatever was done to control the car, there was something else involved. A bomb is the most likely. A drone strike is also possible.
They wanted the make sure the driver was killed in a plausible way, and any physical evidence destroyed. A simple car crash might not have done that.