A computer-implemented method for interactive vehicle package design includes receiving vehicle occupant package design model data. The vehicle occupant package design model data includes a task to be executed. The method also includes receiving parameters defining a virtual human subject for executing the task. The virtual human subject includes a plurality of degrees of freedom. The method includes determining a plurality of motion descriptors of the virtual human subject including determining a manipulation over time of the degrees of freedom of the virtual human subject during accomplishment of the task, and determining one or more performance metrics based on the motion descriptors. The method further includes generating a visual representation of the vehicle occupant package design model, the virtual human subject, and the task to be executed.