Even EVs can benefit from motor-related electronics upgrades. For example, stock Audi e tron Ss usually must strike a balance between performance and comfort, whereas enthusiasts generally want their driving experience more geared toward a higher level of excitement. In addition, some EVs have their higher-end performance features locked away as paid add-ons. By upgrading your Audi e tron S's motor parts and electronics, you can realize a large difference in acceleration and throttle response.