A unitary (one-piece) construction of an electric vehicle chassis is provided having at least one s-bend aft of the front axle to allow battery packs to mount on isolators inside of the frame rails. The overall width of the frame (at the widest) is 4-6″ wider as compared to traditional (non-ev) vehicles. This increased width is provided for to accommodate the battery packs required for operation of the electric vehicle. The s-bend allows for front wheel steering angles greater than if rails were straight. In some embodiments, a second s-bend directs the frame again outwards to accommodate additional components and to increase strength of the overall frame. The present wide and s-bend configuration allows for mounting of rear springs underneath of the frame rails for extra support and more efficient and improved packaging. The cross member further allows for front spring mounting to the frame.