lol, there is no way a PPV is getting up to 160 mph (heck, the charger & taurus SHO interceptors cant even go that fast)
the driveshaft will give out well before that is reached. tires would have issues at that speed too
129-135 is more reasonable, thats still pushing it.
i havent seen any upfitters upgrading the driveshaft
i am not familiar, but i would assume no it doesnt (not by itself). As all the kits on tuner pages that i have seen clearly state they do not have CARB & not Cali legal.
i think the only way for an LT4SC to work in Cali is to buy a whole crate engine w/ SC from GM
wireless charging and the swipe foot option to open the rear liftgate were avail on the 2015i (so like 6+ months after the first ones rolled out)
you can always add the wireless charging
& your burb looks good
my '15 has no vibrations when using Auto or 4hi
i also have not experienced any difference in fuel economy when driving in either 2wd or Auto
also no noise in Auto on highway
searched here but couldnt find threads.
so from other forum
https://www.tahoeyukonforum.com/threads/cargo-area-light-mod.100191/
above is eagle eye one
https://www.tahoeyukonforum.com/threads/2016-yukon-denali-no-rear-cargo-overhead-light-there-is-now-diy-guide.85574/