Attack Vectors != vulnerabilities
Interesting quote from an article on forbes regarding this:
"A study released at Black Hat this week by security researchers Chris Valasek and Charlie Miller explored the “attack surface”, or hackability, of 24 different vehicles. The Infinity Q50, which Valasek owns, and the Jeep Cherokee, which Miller drives, did not fare well due to the number of attack surfaces they had. The researchers weren’t able to remotely hack any of the cars, though." (my emphasis).
It's an area which I am tangentially involved in, so I find this stuff quite interesting from a professional point of view too :-)