Ok i have a question for those who have both, is the track/performance pkg really necessary if the car will not even see a track unless its at a Shelby reunion or Ford gathering? I ordered a decked out grey 2014 821A minus the shaker pro but I'm looking and thinking say 5-10 years down the road about parts availability. Or should i change the order and order a decked out 820A knowing that I'll be lowering the car with springs and shocks or even coilovers? I've gone over this in my mind for about a week now and i thought I'd throw the question out there and get some input from you guys.