The characteristics of each major function were chosen to satisfy the collection of consumer mind-sets for which the model was designed. For example, the engine specified for a ZX would be high-performance one, while for the sentra it would be smaller, less powerful, and less expensive. The current cost of the model was determined by summing the current manufacturing cost of each major function of the new model. This current cost was compared with the model's allowable cost to determine the level of cost reduction required to achieve the desired level of profitability.