I believe that the statement "the car will be cheaper because there is a subscription add-on enhancing the amount of horsepower available" is false

This is a case of creative business modeling. I believe that companies should invest in creating good business models. They also shouldn't over complicate them

Given that, I believe that the subscriptions to unlock seat heaters are a worse example of this and not great for customer satisfaction. Specially since all those cars are already equipped with seat heaters and essentially artificially jailed by software