Meet Model X
Okay.. I'm a Model S owner and I love Tesla and I chuckled at the whole Insane mode and gave a bit of an amused snort at Ludicrous mode.<p>This, however, really makes me wonder WTH is going on there:<p>HEPA Air Filters
"There are three modes: circulate with outside air, re-circulate inside air and a <i>bioweapon defense mode that creates positive pressure inside the cabin to protect occupants</i>."<p>EDIT: Very fair points about driving by skunks or nasty smells.  The naming is what gets me though.  If it was called Noxious Smell Defense Mode or something, that would make perfect sense.  Looking at Wikipedia, a "medical grade HEPA filter" can filter out 99.97% of particles at least 0.3 micrometers in diameter.  Dunno if the Tesla filters are also using UV irradiation, and I also couldn't find any documentation of the particulate size of skunk odor, so it will be interesting to see documentation on what exactly it can filter out.<p>EDIT2: Watched a bit of the intro event video.  Looks like it has a specific set of activated charcoal filters for sulfur type particulates, so certainly seems like it could be a skunk odor killer. :)