Most now-generated passenger cars with gasoline or diesel engines use transmissions with four–10 forward gear ratios (also known as speeds) and one reverse gear ratio. Electric cars typically use a fixed-equipment or two-velocity transmission without having reverse gear ratio. Among the earliest manual gearbox styles is the sliding mesh gearbox. https://cesariiebv.blogmazing.com/33072123/the-ultimate-guide-to-automobile-gearbox