Are they sitting on dealer lots? If there is no sell through that would explain why there are no new VIN numbers. I've been a Volt owner since 2016 and like all Volt owners I was unhappy that GM killed it but maybe they were right, the era of the PHEV may be over. I just bought a Model 3 AWD last week, I'm keeping the Volt for shopping, because it already has dings, and as a backup in case anything goes wrong with my Model 3 but even though I love the car I wouldn't buy it over the Model 3 even though the M3 is more expensive. Back in 2016 the only affordable and practical EV was the Volt, Tesla's cost > $100K, and Leafs had no range. There also wasn't much of a Supercharger network so even a Tesla was problematic for road trips in most of the country. The Volt had enough range that it could do almost all of it's local driving on electric, and it had a good engine that made it possible to take it anywhere so the lack of charging infrastructure wasn't a problem. That's changed now, the M3 has sufficient range for road trips, the Supercharger network blankets the US and is filling out in Canada, and it's priced competitively with it's direct ICE competitors, i.e. $50K for a long range AWD which makes it as cheap or cheaper than the Audi A4, the Mercedes C class and the BMW 3 series, combine that with the fact that it's actually a much better car than those cars and it's an easy decision for anyone who want's an EV. For people looking for a cheaper alternative there are several good choices for pure EVs, the Bolt, the Kia, the new Leaf, which all have ranges in the low to mid 200s which is a comfortable range for a car that will mostly be used for local driving. PHEVs just might not fit in right now, combine that with the fact that the Clarity isn't a true EV like the Volt was, by that I mean that it needs to use it's engine for some things even if it has charge in it's battery, the Volt only needed to turn on it's engine as a range extender. The universe of people who are looking for an EV just might not be interested in a car like a Clarity and for people who are just looking for a high MPG car a regular hybrid might fit the bill better.