I wouldn't say I "can't wait" for car viruses, but I do worry about all the stupid remote/automated features being advertised these days. You just know it's going to be exploited, and cars are at the top of my list of things that should be as safe and secure as possible.
That mostly boils down to lowering the attack surface.
Individual cars doing their own thing, no problem. Cars talking to cloud, big privacy problem, potential security problem. Cars talking to each other locally, smaller privacy problem, but bigger security problem.
