An automated transmission won't demand any input from the driver to vary forward gears less than standard driving problems. Overdrive is particularly handy for lengthy-distance highway driving, wherever sustaining a significant velocity with negligible motor energy is helpful.  The transaxle gearbox combines the transmission and differential into just one unit. https://cvt-toyota30516.blogdal.com/34361920/how-much-you-need-to-expect-you-ll-pay-for-a-good-automobile-gearbox