Question? And don't jump on me for this! I own an MSXX with the 2.5mm Chassis. I will be running on carpet this year instock, 13.5. Why do you need the 416? This year at the Reedy and the IIC Marc R used his old car, what is the big difference in performance over the 415 MSXX? Could you tell the difference? I just can't justify spending 400-500$ every 6-12 months on a new design that has small changes that you can't even notice unless you are a world class driver. I still love Tamiya and would never change to another car, but convince me why should I buy a 416
