Lost in all of the worries about tax credits expiring is another incentive that could have a short shelf life in some states. Here in AZ hybrids access to car pools lanes has been capped for several years such that new owners are not eligible. BEVs all receive the special plate but based on volume in the carpool lanes, ADOT can cap that access as well. As Model 3 and competitors proliferate I could see that happenng sooner or later. Something else to consider if you are planning to wait a couple years as I'm guessing some other states may cap access as well.