[JS919]

If it were a $600 option from the factory I would have considered ordering it. At $3000+ dealer or port installed, it's throwing good money away unless you are going to the track. The standard diff and electronic control (via brakes) work pretty good. In stock form it will spin both tires and do a nice drift when pushing it around corners. If lap times aren't a concern, I'd save the $3K for a down payment on a M2.