Yellow Infernus and Pay & Spray Glitch! (Spoiler)

[Trisma]

When I go into the Pay & Spray it seems to go through about 10 or so colours before getting to dark green, once its dark green its permanently dark green because the colour loops! Go in and out and its always the same. So it looks like I cannot get a yellow Infernus with a spoiler because the one Bernie gave me didn't have a spoiler and I can't seem to find one that is yellow at all.

 

Also, does anyone have a yellow Infernus from Bernie with a spoiler?

 

Or does anyone know of a way to change a car to its alternate body (with spoiler, NRG 900RR/NRG 900F etc.) with a glitch (like PC version of GTA VC when you use a replay)?