This mod will replace your handling.dat file with the custom one and makes the bus heavy.
The original handling.dat file is included.
This mod will work with the original GTA IV and EFLC; each in their respected folders.
Read the readme included for instructions on how to install it.
Check my video on what exactly this mod does (go to my YouTube channel)
For indestructible bus look for SimpleNative Trainer and have car god mode on