had to bump this. the neo gens are a far step above the nt555. accelerated hard through an S turn and didn't have to lift, and did a 45mph full crank on the steering wheel and fronts planted hard with -2 camber.
i have driven on most tires made, and so far, the wear and grip is working very good for me on the neo gens. tire/rim size and suspension set up is key tho.

 

I am planning to buy 19" Neo Gen's or Toyo Proxes 4 plus (245/35 & 275/35)

I have Toyo Proxes 4 on my M5, love them but they are not cheap.

Are the Neo Gen's still holding good?