Well the parent of the comment I first replied to said "Most estimates put the number of lines of code in a new car at near 100 million." I took that to mean total LOC in a car, not in an Engine Control Unit. But your comments to me suggest you are talking about an Engine Control Unit. Forgive me, but it is not obvious to me what you are on about.
I think the point is that if you're talking about finding malicious engine control activity, then talking about the number of lines of code for the entire car is irrelevant, because all that matters is the code for the engine control unit.
