Wow, dramatic much? They probably sleep at night by realizing that the car they are selling you is far less likely to be its driver’s place of death than the 2003 car you’re driving.
You're orders of magnitude more likely to die in a regular old car accident than you are as a result of your car being hacked.
I'm as concerned about insecure computers in cars as the next tinfoil-wearing conspiracy theorist (that is to say- very, very much), but let's not overstate the actual numbers. A modern car getting hacked is a real risk that needs to be handled, but the actual occurrence of it in the wild is extremely low, and likely to remain that way for at least the next few decades.
Being targeted for hacking only adds to the risk of being involved in a regular old accident, not replaces it; and no matter who you are, your odds of eventually being involved in a non-hacking related crash are pretty high. The difference in severity of injuries and risk of death in a car accident between a 2018 model and a 2003 model is considerable.
So unless you're Snowden and someone is actively trying to kill you, citing the risk of hacking as a rational safety-based reason to drive a 15 year-old car just doesn't hold water.
And if you are Snowden, physically tampering with a car or just forcing you off the road is so easy, hacking probably doesn't increase the risk profile much either. Granted, it's slightly more convenient for your would-be murderers.
