While designing sky is the limit but it also has to be something that can be manufactured. After the design process is over we get in touch with some mold manufacturers and make changes on design to manufactured for better results and also get it manufactured fast. Since manufacturing of molds are an expensive process everything has to be clear with the mold manufacturer.
Also this time Near East University Solar Racing Team had the models from the manufacturing company so that if the team wants to make some minor changes in the next generations of the solar car these changes can be applied on the model and new molds can be produced from there. These are all considered not because of costs but also to gain some extra time for the next generation of solar cars.