In this study, selected Range Extender (REx) hybrid and electric vehicles were modeled and compared according to their performance on Istanbul drive cycle for the same operating conditions. The parametric drive train design and simulation of hybrid and electric vehicle were performed on the engineering software. The engineering analysis compared for power consumption calculation, maximum velocity calculation and acceleration time calculation over the selected hybrid and electric vehicle drive cycle of Istanbul. Also results can be evaluated for the conventional car which is equipped by internal combustion engine. Vehicle performance results were analyzed on the portion of power consumption in the internal combustion engine performance map. The study shows that the engine operates in a more efficient condition in the pure electric vehicle for the Istanbul drive cycle than that in the electric and conventional vehicles due to the stop-and-go situation. Thanks to the hybrid electric drive train system, both traction performance and fuel economy of the vehicle are enhanced in a big step. The results are widely and qualitatively in agreement with the previous experimental and computational studies in the literature.