NeoNautica, I am not a coder, so I don't know how you solved the problem of needing power cores and such inorder to have a functioning Onslaught map, but you have
I added your car to my Pavilion map to test it on a track. The handling is very precise until you are close to full speed, then it tends to slide too quickly, that is, compared to what we are used to. The default Onslaught vehicle suffer this same fault, the precise handling. They don't seem to generate momentum, or behave like they had any mass.