The method of parameterized structural modeling and design based on SFE CONCEPT makes it is available for fast modification and multi-performance rapid integration optimization on carbody structure. A structural SFE model is built from a car structural FE model in concept development stage, which is validated by some design simulation data. The validated SFE structural model can be used for rapid optimization and multi-performance evaluation for different design variation. This engineering parameterized design method on carbody structure has the obvious practical advantage to improve the efficiency of lightweighting design.