The research reported in this paper illustrates the integration of product and disassembly process design via virtual prototyping. In this context, a virtual prototype is an information model consisting of a product model and one or more process models. Integrated product/process design is accomplished by defining a parametric design problem in terms of constraints/goals and coupling virtual prototypes and a multiobjective optimization code for solution. Application of optimization techniques to solution has proven difficult. Problematic characteristics are highlighted, and an effective optimization algorithm is described. An automotive center console is used as an example. The focus of this paper is the formulation and solution of integrated product/process design problems, rather than the results of the center console design problem, per se.