Source: One minor technical flaw, a useful summary needing these points: 250 kW SuperChargers - each is independent and not shared with other SuperChargers. The earlier 125 kW units worked as pairs, Preconditioning - it is critical to have the car plugged into at least an L2 charger and schedule the departure time. This will pre-warm the battery giving more efficient operation along with cabin pre-heated. Let the Grid power the initial warm-up. Cold air drag - the denser air increases the drag significantly. It is important to run slower speeds to stretch the range. Use "dog mode" to preserve battery and cabin heat instead of drawing from the battery later. Built-in mapping - it shows all superchargers within hundreds of miles to optimize route. Best of all, identify L2 charger equipped motels to start the next day with a preconditioned car. A little more costly but saves time: GOOD, FAST, CHEAP This was the return trip metrics in 30-43 F weather: 1000/256.5 = 3.9 miles/kWh 338.7 * 2 = 677.miles in 16 hours 677 / 14 = 48 mph
Plus - when any vehicle, gas or EV is pushing through slush & snow, that's going to create more drag, couple that with ice buildup inside the wheels? More drag. Then, there's cold, and REALLY cold. Thank the Lord it hardly ever gets this cold - well below zero, very often, but when it does? An EV or PHEV heat pump is useless, so cabin comfort and windshield defroster have to rely on resistance heating which further suck the life out of a pack - just like it sucks the life out of a gasser having to crank over a engine block &/or turn axle & transmission gears over that are dealing w/sub Sub-Zero temps. .
That's why it's always nice to have a gasoline backup - especially if you end up behind a interstate pileup or long chain control lines. You can burn your battery down rather quickly using those resistant heaters. Better to just utilize the seat and steering wheel heaters, but then you'll have to deal with glass fogging.
I would probably choose a less volatile fuel and combustion that does not generate carbon monoxide. Furthermore, a more efficient combustion cycle that allows reuse of waste heat: liquid cooled engine and exhaust - cool in the cabin modest electric generation - 100 watts Bob Wilson
