Maletero vs. baúl vs. cajuela

The Spanish terms 'maletero', 'baúl', and 'cajuela' all refer to the same item, which means 'trunk or boot of a car' in English. The difference between these words lies primarily in the regions where they are used.

Maletero

'Maletero' is most commonly used in Spain and refers to the back storage area of a car.
El maletero del coche está lleno.
(The trunk of the car is full.)

Baúl

'Baúl' is widely used in many Latin American countries like Argentina, Venezuela, Colombia, Peru, etc. Besides meaning 'trunk of a car', it can also refer to large wooden trunk or chest.
Tengo que abrir el baúl para sacar el equipaje.
(I have to open the trunk to get the luggage.)
Guarda tus cosas en ese baúl.
(Keep your things in that trunk.)

Cajuela

The term 'cajuela' is used mainly in Mexico for referring to 'car's trunk'. It may not be well-understood outside of Mexico.
La cajuela de mi carro no cierra bien.
(The trunk of my car doesn't close properly.)

Summary

In conclusion, 'maletero', 'baúl', and 'cajuela' all mean the same thing, namely the trunk or boot of a car. However, they are used in different regions; people from Spain prefer using 'maletero', while those from many Latin American countries use 'baúl' and Mexicans use 'cajuela'. Understanding these regional differences can enhance effective communication.