1. A system for generating three dimensional functional space reservation systems of a vehicle using delta storage, comprising: a processor; and memory coupled to the processor, Wherein the memory comprises a file reader tool including: a functional geometrical information (FGI) reader module for collecting functional, connectivity and geometrical information associated with two conceptual space reservation versions of the vehicle from one or more design databases upon receiving a request from a client device for three dimensional functional space reservation systems, wherein the two conceptual space reservation versions include a current conceptual space reservation version and a previous conceptual space reservation version, wherein the functional, connectivity and geometrical information associated with the two conceptual space reservation versions are transformed into a binary form, and wherein each conceptual space reservation version includes multiple design entities; a mathematical modeler module for receiving the binary form of the functional, connectivity and geometrical information associated with the two conceptual space reservation versions and creating associated mathematical cal models in an organized binary form for creating design entities associated with the two conceptual space reservation versions; a comparator and segregator module for receiving the mathematical models and outputting delta information detected from the two conceptual space reservation versions of the vehicle; a standardization module for applying a set of rules and checks governing a design of the vehicle to the design entities in the mathematical model of the current conceptual space reservation version and outputting standardized entities information; a functional mapper module for receiving the delta information from the comparator and segregator module and applying a set of functional attributes to the standardized entities associated with the delta information to create standardized functional entities associated with the delta information; and a writer module for generating the three dimensional functional space reservation systems including new part numbers for the design entities associated with the delta information for a computer-aided design (CAD) standard platform and storing the design entities in the generated three dimensional functional space reservation systems of the vehicle.