'Auto Transmissions', also known as automatic transmissions, use automatic gear boxes in vehicles for changing gears automatically when needed, without the help of drivers. In Portland there are many vehicles which have auto transmission facilities. Various types of transmissions are there depending on the number of gears. Traditional auto transmissions had three gears- neutral, reverse and park. Modern auto transmissions have a minimum of four gears and a maximum of eight gears.
There are quite a few vehicles also in Portland which do not use auto transmissions. These vehicles in Portland either depend on manual transmissions or semi-auto transmissions. Mostly all the cars are auto transmission-enabled in Portland and it is easier to drive these vehicles.