To install this mod, simply import both infernus.dff and infernus.txd into gta3.img, located in GTA San Andreas/models using an IMG Editor.
I'd recommend Alci's IMG Editor 1.4 or GGMM (GTA Garage Mod Manager)

Parts designed, created and edited into the Infernus by me, Nismo.
Rims extracted from Juiced HIN2, credits to MaTheuS-340 -> http://mttrance.blogspot.com

Special thanks:
Reese -> Opinions and general help

9.1 Rapide S Changelog:
New rear
New rims
Optimized grill to reduce file size and framerate issues 