This paper addresses cross-domain optimization of lean technologies developed through motorsports as applied to military vehicle design. Optimization of performance objectives eliminates the reiterative assessments utilized in standard validation and verification of product development. This paper describes the enhancement of overall vehicle reliability, durability, and performance through utilization of front-loaded design, development, engineering, and prototyping activity. Cross-domain optimization, using a Design of Experiments approach (DOE) and the integration of CAE tools, predictably allows for the efficient and accurate solution of challenges prior to full scale prototype build and, congruently, eliminates the necessity for multiple variants often required throughout many testing phases. This paper illustrates, systematically, the reduction of build phases while introducing a new paradigm for military vehicle design.