Industries are seeking new ways to develop and manufacture lighter and more flexibly usable vehicles – less weight means higher payloads and a better ROI. For a recent project, Austria’s ÖBB RCG wanted to design a new lighter, more flexible wagon system. The result was the TransANT wagon series, a lightweight construction concept with a modular design. The most important design principles were weight optimization, standardization, and modularization in production and maintenance, and the use of high-strength construction steel. To achieve these goals, a consortium of several companies used Altair’s CAE solution. By doing so they received a payload advantage of up to 4 tons, customizable logistic solutions, and reduced manufacturing complexity thanks to ~ 40 % less parts to assemble.