racing one should have bigger rear wing, check this, all styles
0.no-extra
1.Infernus
2.Your NSX-R (support carcol2)
3.Stratum X-Flow Spoiler (fits almost perfectly without scaling, also support carcol2)
4.Jester X-Flow spoiler (fits almost perfectly without scaling)
5.TransFender Alpha (scaled bigger to make racing wing look)
6.TransFender Fury Spoiler (scaled bigger to make racing wing look)