The phrase "taller passengers" refers to people who are of above average height and may need more space or legroom when traveling, such as on a plane or in a car. Full definition
The tall roof creates plenty of headroom and the model offers generous legroom for taller passengers in both the front and rear seats. (automotive.com)
There is legroom front and back for even taller passengers and despite a roof that looks low from the outside, inside there is plenty of headroom. (bestride.com)
Need more legroom for taller passengers in the back? (moneysense.ca)