How To make car mod like GT-R R34 mod to the real size?

[SoSisSoNice]

Can someone tell me how to make car mod to real size like the R34 is using real size?

 

[ToastyFRL]

I dont know...

 

[BestStigOfAllTime]

1) what you are meaning with "real size"
2) there are millions of mods so find out