Speculators eye flipping the rare 911 Sport Classic, made in limited numbers.
Porsche leases ban 911 S/T lease transfers and resale for at least 12 months.
Lessees pay excess mileage fees making high miles less profitable for flippers.
By leasing, 911 S/T costs much less upfront than six-figure purchase price.
Leased 911 S/T depreciates faster, reducing profit potential for speculators.
Porsche wants to discourage flipping and ensure loyal owners enjoy the 911 S/T.
Huge demand and interest stimulated speculation on the collectible models.