weight impacts everything; acceleration, handling, braking performance, brake wear , tire wear, road wear, generally increased NVH if the weight gain isn't part

weight impacts everything; acceleration, handling, braking performance, brake wear , tire wear, road wear, generally increased NVH if the weight gain isn't part of the superstructure, drive train loads, consumable suspension (bushings/wear items) wear .. the list goes on, but you get the point. it's all a cost/benefit ratio between duration/range/cost/marketability/reliability ; you can take care of the technical issues behind weight gain, but is there still a market there once you do and the cost to produce skyrockets?