Someone suggested driving to the dealer to swap out for a hybrid and naturally some people I think have misunderstood the intent of that post, saying I'll never drive to a dealer or give a dealer my car, etc, etc, etc. I pretty sure the one who posted that was referring to the same offer BMW has if you buy one of their all electric vehicles. And it's actually a pretty damn good offer.
BMW, if you buy an i3 from them, will GIVE you a free loaner car if you need to go on a long distance trip that exceeds the range of their electric vehicle. For them, that's only 80 miles. But that's still a pretty good offer. First off, there's no cost to it. You don't have to leave your car at the dealer if you don't want to. Just get a ride to the dealer to pick up the free loaner car. Second, you can rack up travel miles on someone else's car. if you're taking a 2,000 mile round trip, would be nice to not rack up those miles on your own car, de-valuing your own car. At Tesla's rates of $1.00 depreciation per mile, that trip would cost you $2,000 in value on your car.
Of course if such a car has a 250-300 mile range, you wouldn't be forced to do this if you didn't want to. You could still take your car if you so chose. But having BMW or in this case if this car every did come to pass as an electric vehicle, give you the OPTION of picking up a loaner car is a pretty nice option to have. Lets face it, travelling in a Tesla ABSOLUTELY takes longer than travelling in an ICE. If you had a trip where you couldn't afford to sacrifice the charging time needed, at least with BMW or in this case, GM as proposed, you would have the option of swapping out for another car and taking your trip much quicker, again, while saving the mileage on your own car.
With the Chademo chargers popping up all over the place and having charge rates not all that far off of what Supercharger rates are, travelling in any EV is going to be "reasonable" in the very near future. So IF GM were to produce this car or any other car as an EV with 250+ miles of range, in another year or two, the Chademo network will likely be built up enough by then to make long distance travel possible, even without a specific manufacturer providing it's own Supercharger network. Additionally, the advantage to having such a network and driving a GM or any other large manufacturer's vehicle, you'd likely always have the option to stop off at any dealer for a free charge too and not be limited only to the locations of Superchargers.
As the population of EV cars on the road grows past the current 1% and into the 20%+ range, I think most manufacturers will get together on a charging network that will be nationwide and available every few miles, not just every 150-200 miles. In addition to that, with that many EV's on the road, I think most current gas stations would start installing fast chargers as well. We're many years off of that happening, but someday, you'll be able to charge at any corner gas/charge station.
Anyway, the idea of at least having the option to swap out your car (or simply go pick up a loaner car while your car sits in your garage) is a good very good one that BMW already offers.