Armrest

In an automotive

Automobile

An automobile, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

 context, an armrest (or arm rest) is a feature found in many modern vehicles on which occupants can rest their arms.

Armrests are more prolific in larger, more expensive models of car.

In the front of the car, a central armrest, which commonly folds away based on user preference, will also often include a storage compartment and sometimes even cup holders.

In an automotive

Automobile

An automobile, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

 context, an armrest (or arm rest) is a feature found in many modern vehicles on which occupants can rest their arms.

Armrests are more prolific in larger, more expensive models of car.

Front

In the front of the car, a central armrest, which commonly folds away based on user preference, will also often include a storage compartment and sometimes even cup holders. Some also provide the location for controls for non-essential functions of the vehicle, such as climate control or window motors.
The central armrest are buit in strong plastic material and have a soft pad covered in textile or leather. Examples of front central armrests at woodcompany.com

Sometimes one or two armrests may also be attached to each individual seat, a feature commonly found in minivan

Minivan

A minivan, multi-purpose vehicle , people-carrier, people-mover or multi-utility vehicle is a type of automobile similar in shape to a van that is designed for personal use...

s (MPVs) and some SUVs.

Frequently there is a further armrest built into the door of the car, often forming part of the door pulling handle.

Rear

A rear arm-rest will typically fold away between the back seats

Car seat

A car seat is the chair used in automobiles. Most car seats are made from cheap, but durable materials, made to withstand as much beating as possible...

, to allow for the central (third) seating place to be used.

In some designs where occupant safety is emphasised, including some Volvo

Volvo Cars

Volvo Cars, or Volvo Personvagnar AB, is a Swedish automobile manufacturer founded in 1927 in the city of Gothenburg, Sweden, and currently owned by Ford Motor Company....

 models, the armrest doubles as a child seat, complete with specially adjustable seatbelt.

As with the front, it is not unusual to have armrests built into rear doors, or the side of the car if there is no rear door.