Abstract: A system and a method are set forth for generating performance curves for enabling user customized marketing communications proficiency and performance optimization, comprising collecting and storing historical vehicle data and response data relating for a marketing plan, normalizing the data to a standardized schema, performing non-linear polynomial regression analysis on the normalized data for generating a plurality of curves representing performance of the marketing plan, and displaying said plurality of curves to the user. Preferably, the plurality of curves are generated by a predictive analytics and forecasting engine using an optimized Chebyshev polynomial curve selected to a desired closeness of fit to the normalized data.