How to give my Police Car NPC Accurate pathfinding

So my police car npc has a script where it steers to the objectvalues value which is called ‘‘Target’’
It steers left and right and maintains Straight steering control perfectly.

I tried adding normal pathfinding to it, but all it did just follow the last pathfinding part, what am i missing?
and how do you even make pathfinding slowly so the car steer to it?