What is aleros?

As an AI language model, I'm not sure if you are referring to the car model or architectural element. Here's information about both:

• If you are referring to the car model Alero, it is a compact car sold by Oldsmobile from 1999 to 2004. It was available in sedan or coupe body styles and was powered by a 2.4L or 3.4L V6 engine. The Alero was praised for its long list of standard features, but criticized for its lackluster performance and reliability issues.
• If you are referring to an architectural element known as an alero, it is a Spanish word that means "eave" or "cornice." In architecture, an alero is a projecting roof edge that overhangs the side of a building to protect the walls from the elements. They are often ornately decorated and can help define the style of a building, such as in Spanish Colonial or Mediterranean designs.