If you are looking for for a specific error? If you need tuning/XML editing instructions?
: Launch the game, select your save file, and ensure the Lamborghini Nitro T4i VRT is checked in the mod selection screen before loading the game. Tractor Specifications Nitro T4i VRT V1.0.0.0
Which you are playing (FS17, FS19, etc.)? If you are looking for for a specific error
: VRT (Variable Ratio Transmission/Continuously Variable Transmission). Key Features & Usage select your save file