Yeah, right. My dogs pick up on a Prius a mile out. Diesel is more routine then something that runs quite. The dogs will alert on any vehicle but if silent running is an issue, you are probably on the verge of being dead anyway.
Torque & Fuel are my top two features.
Honestly, I don't see your point. When dogs start setting up ambushes during a SHTF, then yeah, ill change to a louder vehicle, so the dogs will leave me alone, and I only have people to worry about.