Here are summaries of 33 finalists and winners for the 2013 Automotive News PACE Awards, which honor commercialized innovations in products, processes and information technology.
What: Monotherm steel pistons for passenger car diesel engines
Innovation: Aluminum pistons are the standard for diesel engines. Mahle's forged steel piston and accompanying pin assembly are lighter than an aluminum assembly. And the steel piston operates with 5 percent less friction than aluminum, helping automakers to meet goals for carbon dioxide reduction.