In the introductory part of the paper briefly introduces the topic of the problem. Historical car development, the description of electric cars and the design of the design process make the first chapter of the work. Also, the motive of a highly human nature is also mentioned, which leads to the definition of a task. As in the stages of the construction process, after defining the construction task, information is collected, explored and discussed existing, same or similar product solutions on the market. In the further description of the construction process, certain requirements are defined for the product to meet these partial functions. Each product must have partial functions that will provide new and better solutions in relation to the previous constructional product solutions. The basic task of the project is to construct a frame and an inboard platform for the design of an electric car intended for the carriage of persons in wheelchairs. The frame, the inlet platform and the mechanism for fixing the wheelchairs are modeled according to their own technical and design solution. The 3D modeling was performed in the SolidWorks software package. SolidWorks compared to NX has the advantage of easier modeling of a product's Surface. In the development of product modeling solutions, special attention has to be paid to the aesthetic appearance of the product and to its nctionality. In addition to the 3D model, the second part of the work has also produced the necessary calculation or stress analysis, deformation and aerodynamics of the product. It is necessary to calculate the static rigidity of the inlet platform and body, analysis of crash and aerodynamics of the car. Calculations are calculated numerically in the Ansys program package, however, with different modules. In the final part of the paper, an analysis of the industrial design is carried out using a list of control questions, through which new solutions can be found during the introductory research. Conclusions and explanations of work are outlined in Chapter 9 and technical documentation with worksheets and assembly drawings in attachments.