TOYOTA CITY, Japan--Toyota Motor Corp.'s 50-year-old Tsutsumi assembly plant here has been the home of many innovations over the years.

SEOUL--Engineers at Hyundai Motor Group have developed exoskeleton technology to address ergonomic issues and concerns on its assembly lines.

MUNICH--The BMW Group is increasingly relying on advanced technology to streamline logistics and material handling in its assembly plants.

LONDON--Manufacturers in a wide variety of industries are investing in smart manufacturing technologies, such as additive manufacturing, augmented reality and collaborative robots.

FLINT, MI—Over the next few months, hundreds of General Motors employees will be relocating, and some of those will be coming to the automaker’s assembly plant here.

CHATTANOOGA, TN—Volkswagen will invest $800 million to make a new electric vehicle (EV) at its assembly plant here.

DETROIT—Ford and Volkswagen plan to build commercial vans and medium-sized pickup trucks together as early as 2022 as part of a new partnership.

In a single year, millions of cars are manufactured worldwide. While the styles, parts and features may vary, every vehicle requires a wire harness. The harness connects the wiring throughout the vehicle, powering everything from power steering and headlights to in-dash displays and heated seats.