At the same price which would you use for a daily driver that would go to a trackday quarterly. not about making big power just suspension upgrades to make things tighter, which is more livable? comfy? more accurate at speed? safe while going sideways?
which would be more feasible to run as dd? less headaches? on the other hand which is more hard core ? where would you feel better in a hillclimb run? which is scarier on the downhill? where would the nsx eccell? where is the 964 better?

 

I would rather have the NSX. I don't know much about the 964, so I won't say anything since I am ignorant in that department.