Installation:

1: Install this mod:
https://www.gta5-mods.com/player/mai-shiranui-sp-insanogames-alex189

2: Add the "uppr_diff_000_c_uni.dds" texture to the "MaiSP.ytd" file using OpenIV.

Credit for Mai Shiranui goes to alex189 and saldin93

[optional]

1: Install Menyoo
https://www.gta5-mods.com/scripts/menyoo-pc-sp

2: Extract the "Roller Coaster Car.xml" file to "C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\menyooStuff\Vehicle"