Tesla encourages owners to give up 'unlimited free Supercharging for life'
Tesla discontinued the perk in 2018 after claiming that it was unsustainable, though it was occasionally reinstated as a sales incentive.
Tesla made a first attempt earlier this year to get those vehicles off the perk by offering owners an extra $5,000 discount if they traded in a Model S or Model X with unlimited free Supercharging. (Image credit: IANS)