This is just off the HOT mail box. The 2016 ND (GT)/2009 NC (Sport with LSD) comparison from GRM is my hand. The average ax time is 58.25 vs 58.4475, a 0.1975 in favor of the ND ! The runs are done on Rival S. But looking at the lateral g and speed graphs. They are as close as you can get them. At first glance, if you want to win the national championship, spend $32K and get the ND, otherwise, NC is till competitive for the average Joe! I think I am just as happy with $32K in my pocket driving the moded 06 NC for now! After all, I am a TCB! :D If I feel like driving a smaller Miata, I still has my 99! ;)