I'm estimating 40lbs when all is done. If I was after weight reduction I could gut the Car I suppose but that is not my goal here. In the full scheme of things adding such a nominal amount of weight will make zero difference. However many benefits to be gained by adding the MLV. Maybe I could have you come out and perform a Temperature retaining study? Or benefits of ear fatigue with insulation vs non insulation?...and total weight added. I feel like those two data points are super important since weight is the biggest negative (other than cost/time) to insulating vehicles and one of the big reasons Tesla chose to skimp on this aspect since the cars are already super heavy compared to other sedans in the segment.