Some vehicle models offer fold-down rear seats, to gain cargo space when they are not occupied by passengers.
A fold-down front-passenger seat was a feature on the Chrysler PT Cruiser to fit longer items such as a 240-centimetre (8 ft) ladder inside the vehicle.
The National Traffic and Motor Vehicle Safety Act enacted by the U.S. in 1966 established standards of strength for automobile seats.
[4] The legal requirements in some jurisdictions [5] for a child to sit up front is 150 cm (5 ft) and they must weigh more than 36 kg (80 lb).
Some studies have shown that drivers have an aversion towards carrying the full capacity number of passengers due to concerns over insufficient vision through the back window.
In 2023 BMW pulled out of a plan to implement a subscription model on their heated seats due to public backlash.