Abstract: A system and method for generating a vehicle fleet configuration for purchase, replacement, and/or deployment of vehicles include an input device configured to receive user input indicative of a number of vehicles to purchase and at least one fleet operational parameter target. A computer in communication with the input device and a database having emissions and fuel economy information for a plurality of available vehicle models and associated powertrain configurations is configured to generate a recommended number of vehicles for each of the available vehicle models with associated powertrain configurations to satisfy the number of vehicles to purchase, wherein the operational parameters associated with the number of vehicles satisfy at least one fleet operational parameter target, which may include one of minimizing cost or minimizing emissions, for example.