Can someone please provide the dimension (width and height) of full front hood? even this is ballpark, it will help me decide the size of paint protection film that I need to get to cover the full front hood. thanks.
The hood is about 1400 mm wide and a tad over 1200 mm long. That is the minimum sheet size you would need to cover it completely. Because of its shape you are going to have excess material along the sides and at the rear that you may be able to use elsewhere.
That's just for the hood. I would suggest on a model 3 that the front bumper is the place to cover first with possibly a partial on the front fenders and hood.