This study shows the comparative analysis results of driving characteristic sensitivity according to different gear ratios for front- and rear-wheel drive electric vehicles. These driving characteristics include acceleration performance, maximum velocity, urban driving energy consumption, and highway driving energy consumption. The electric vehicle model proposed by the authors in the literature was implemented to simulate these driving characteristics for different gear ratios, and the normalized sensitivity values were then evaluated. The sensitivity analysis results show that the maximum velocity was mostly affected by the changes in the gear ratio of the front-wheel drive electric vehicle. However, the acceleration performance was mostly affected by the changes in the gear ratio of the rear-wheel drive electric vehicle. Based on the sensitivity analysis results, selecting the gear ratio suitable for the driving characteristics should be considered when designing the gear ratios for front- and rear-wheel drive electric vehicles.