Electric vehicles promise to transform the automotive landscape. But, don’t expect to see too many differences in assembly plants as automakers start ramping up production.

Automakers and suppliers are scrambling to produce key electromechanical components, such as axles, controllers, steering sytems and climate-control systems.

As demand for unmanned military vehicles grows, smaller, lighter and more powerful batteries will be needed.

A plain-looking warehouse near Detroit is being transformed into a state-of-the-art lithium-ion battery assembly plant. General Motors Co. (GM) is investing $43 million in the facility to mass-produce battery packs for the Chevrolet Volt and other extended-range electric vehicles. When the 160,000-square-foot facility opens next year, it will be the first lithium-ion battery manufacturing plant in the U.S. operated by a major automaker.