Even that will be off in terms of weight. With my 4s 8000 pack, the balance is still a little more on the battery side and I have the rest of the electronics on the other side, except for the ESC, which is in the center. I can tell pretty easily while holding it, but while jumping, it flies perfectly straight. You may to try the car out, and then decide if you want to redo the lay out.
Good luck!
