Rims and hoods make the outside of a car look great. The round metal ring on which a tire ride is known as a rim. Rim is also termed as custom wheels. These are available in various styles, finishes, sizes and materials. Most people often install custom wheels in order to give the vehicle a different look or new look and so they can run a larger-than-original wheel and tire package as the previous package. Wheels that are made up of magnesium were popular in the early '60s. But nowadays, as built in Cadillac Deville, most wheels are made of steel, of cast aluminum or billet aluminum. Rim comes either bare, painted, clear-coated, polished or chromed. The larger wheels and tires make a vehicle look more muscular and magnificent. These rims are best seen in Cadillac Deville's vehicles.