yesterday, i finally finished the cut list for my chassis and determined the total weight based off the cut lengths and a catalog. the current design uses 2"x3" 11 gauge tubing for only the bottom-most parts, including the box surrounding the passenger bay, the backbone, and the front and rear suspension/motor mounts. the a, b, and c pillars are to be made of 1.5" 12 gauge round tubing. all else (main backbone structure, upper suspension mounts, etc.) is to be made with 1.5"x1.5" 12 gauge tubing. and the total weight, not including any other component or the angles cut out of the tubes, comes out to 512 pounds. that just seems rather heavy to me. :uneasy: i'm sure a lot of weight will come off when the tubes are cut to fit together (there's a lot of bizarre angles), but there's still the aluminum shear panels and the 400 lb audi engine. with the goal weight being 2400 lbs, i'm a little concerned. dare i adjust any tubing sizes to something thinner than .10 inches?