Ordered Tax incentive model (Base, 5-seat, Stealth Grey, Steering wheel, 20"tires and wheels, Black interior.). This is the only configuration that qualifies at the moment. Trading in my 2018 MX with all MCU, Camera, Cpu upgrades. Transfer Both FSD and Unlimited lifetime.Supercharging. My warranty runs out on September so this was a total deal too good to pass up. Limited choices are okay for me. Not too picky and the new Stealth Grey is nice. My theory on the backlog is that they have made the incentive model so specific that the demand for one color and interior really puts pressure on supply line. There are NO inventory cars that qualify for tax incentive in my area--so I think they are waiting until they have enough paint, and black interiors to satisfy what is likely to be a big run of the incentive models. At least that is my theory. Feb-March is my estimated delivery date.