Parts Train's Hubcaps are either made of plastic or metal. Most customers prefer plastic as it performs better as a wheel cover due to its lighter weight. Metal hubcaps are heavier and tend to come off due to centrifugal force. And they cost a lot more. Mazda custom chrome hubcaps give styled steel or alloy wheels a “high-end” chrome look and are an inexpensive alternative to chromed alloy wheels that may cost up to 20 times as much.

There are Mazda hubcaps that are ABS plastic and triple chrome plated. A major quality of this material is that when it is scratched, it does not degrade further with time and exposure to sun, weather, and salt. Even after some years, scratch will look same as it did first day. Whereas chromed metal, steel or alloy, will react with oxygen and salt, and will rust, pit, scale, or flake after it has been scratched.

A wrap-around design available at Parts Train gives your Nissan Altima hood a sleek aerodynamic appearance. Parts Train's hoods allows for easy hood cleaning and waxing. It is made of rugged impact-modified acrylic; design helps protect your hood from damage by rocks and bugs.

A raised area on a hood with a front- or rear-facing opening is called hood scoop. Many hoods are manufactured with a built-in scoop, but a scoop also can be added to a smooth hood. Scoops often are made from steel fiberglass or carbon fiber. Some hood scoops are purely for show and only look like they have an opening. Others have a front-facing opening to feed motor cooler air from outside engine compartment, which improves performance because cool air is denser than warm air. Still other scoops feature a rear-facing opening to vent hot under hood air; this style often is referred to as a cowl induction hood.