The phrase "new alloys" refers to new combinations or mixtures of metals. It means that different types of metals have been combined together to create a new material with unique properties and characteristics. Full definition
At the rear, there's new LED tail - lights and a new bumper, while buyers will also be able to choose from a selection of new alloy wheel designs. (autoexpress.co.uk)
Move along the side and the profile stays the same but with new alloy wheels. (auto.ndtv.com)
There is also a set of new alloy wheels that match well with the overall structure of the upcoming sedan. (motorbeam.com)