Whilst I hate subscriptions, I am not imediatly offended by a £650 reduction in the cost of a car to lock out the last 10% of power that I would expect to have

Whilst I hate subscriptions, I am not imediatly offended by a £650 reduction in the cost of a car to lock out the last 10% of power that I would expect to have a disproportionate cost to the warrenty.