Accurate electric vehicle (EV) powertrain modeling, assessment, and testing are crucial for making crucial designing and management decisions in high-efficiency car models. This journal describes a method for designing and developing an electric car powertrain, which comprises modelling, computing on a vehicle process, as well as in-depth analysis of the results. Although the modelling of the electric car powertrain in software which is simulation environments is essential for the research and designing of EVs, it is crucial to validate these simulations on actual car components to increase the overall efficiency, dependability, and speed of the vehicle. This modelling approach combines the simulation and modelling of an electric car powertrain using MATLAB/Simulink software with the validation of the simulation results on a real automobile. and vehicle-1 and objective is to performance parameter of vehicle are range, energy consumption and acceleration time with variables like, drive cycle (FTP-75, NEDC and MIDC) and Vehicle specification (Vehicle 1 and Vehicle 2) while considering motor speed and torque, power of motor , power of battery , current of battery, SOC, C-rate.