DETROIT--General Motors plans to invest $1 billion in its domestic operations.

WARREN, MI—General Motors engineers have developed a technique to join steel to aluminum with resistance spot welding.

BELVIDERE, IL—An online card game is motivating FCA assemblers here to reduce energy consumption.

GOODWOOD, England—A few lucky customers who purchase a Phantom Drophead Coupe will get a special memento: a piece of the Rolls-Royce assembly line.

TOYOTA CITY, Japan—Toyota Motor Corp. plans to adopt a modular manufacturing strategy that will allow it to operate smaller assembly lines.

The first low-beam headlights appeared on automobiles 100 years ago. Today, engineers are scrambling to develop a new generation of smart headlights that will soon make traditional products as obsolete as kerosene lanterns.

DEARBORN, MI—Ford Motor Co. plans to install 25,000 energy-efficient LED light fixtures at its plants.