I love seeing what other people are doing because I love the details, sometimes it makes me laugh at myself. For example, I built a big 3/16" thick steel structure with welded cross members to support my front bumper, it probably weighs 25lbs. then I built a steel tube frame that hung off of it to support the battery, it probably weighs 3 or 4 lbs, total 29 lbs. Then I built a 16 ga sheet metal tray for the battery, probably 1 lb. then I punched and drilled a bunch of lightening holes in the sheet metal tray, probably saved 5 grams! BUT!... it looked cool! I think I'll add a second battery and drill out my wiper blades!