<http://schema.org/description>
"Several plastic makers are now producing components and subsystems once considered the sole domain of steel and-yes-even aluminum. Thermoplastic can mean up to a 30 to 40% weight reduction over equivalent metal components in many under hood applications, but cost reductions have gained the most attention. That's right: plastic components being cost competitive with metal."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.autofieldguide.com/articles/metal-to-plastic-under-the-hood>