Hi there, I was wondering if someone can answer the question above? In my case, it is my first attempt to tune a car - Ford Ka F200. After adding and taking some parts, it weights 833kg, and the weight balance is 57/43 front/end. Now when I am adding downforce at the rear (let's say 85kg rear), this weight doesn't change obviously in stats. So, for calculations about springs/ARBs etc., should I use the 833kg, or add the 85kg at the rear? Because in my case it changes the balance to 52/48 front/rear, but the downforce starts working at some speed, right? These might be a noob question, but I honestly cannot figure that out from all the advices on forum and found on internet. Thanks!