SILAO, Mexico—Workers at two General Motors’ assembly plants here voted for a new independent union to represent them after ousting an old guard union last year, according to results announced Feb. 3.

DEARBORN, MI—Ford plans to eventually shift all North American small-car production from the U.S. to Mexico, CEO Mark Fields told investors last week, even though the company’s production investments in Mexico have become a lightning rod for controversy in the presidential election.

SAN LUIS POTOSÍ, Mexico—BMW has begun construction of a new, $1 billion assembly plant here to produce is 3 Series sedan. Scheduled to open in 2019, the plant is expected to employ 1,500 people and have an annual production capacity of up to 150,000 units.

DEARBORN, MI—Ford Motor Co. will invest $1.6 billion to build a new assembly plant in Mexico for the manufacture of small vehicles. Work on the facility will start this summer in the state of San Luis Potosi, and the factory will create 2,800 direct jobs.

MEXICO CITY—Ford Motor Co. is planning to spend about $1 billion on a new assembly plant in Mexico, less than a year after committing $2.5 billion to the country to expand an existing factory and build a new transmission facility.

PESQUERIA, Mexico—Quality and production runs are under way at Kia’s new vehicle assembly plant here, which is considered 95 percent completed. Construction and tooling of the $3 billion plant was completed in just 13 months. The factory should have an annual production capacity of 300,000 vehicles.

AGUASCALIENTES, Mexico—Five years after announcing their strategic collaboration, Daimler and the Renault-Nissan Alliance are expanding its scope with the start of a manufacturing joint venture here. The automakers will invest $1 billion in the assembly plant, which produce compact cars for the Mercedes-Benz and Infiniti brands.

DEARBORN, MI—Ford is reportedly looking to invest approximately $2.5 billion in its assembly plants in Chihuahua and Guanajuato in Mexico.