We asked someone from Volvo why the company opted for the low volume and subscription model for the car, and it boiled down to the fact that Volvo is still ramping up production, and just won't have many of the Polestar Engineered early on. The company also wanted to draw some attention to the subscription program using the special model. We asked what would happen with the cars after people were done subscribing, since users of Care by Volvo will only get new cars, not ones previously used by someone else. The answer is once the cars exit subscription, they'll be available for the dealer to resell as used cars, or, if for some reason a dealer didn't want it, it would be sent to auction for any dealer. So in a few years, some of these early Polestar Engineered models will probably enter the used car market.
Now, since there are only 20, it might be tricky to nab one of the first-year models, but the same Volvo person said that the company plans to start offering more in upcoming model years. They don't have production numbers yet, but there should be more than the first year, and with the greater volume, will come additional ownership models, meaning you'll likely be able to buy one new sometime in the future. Naturally there isn't a price estimate for the future, but it's safe to assume it will command a substantial premium, as the first 20 did in the subscription service.