KANSAS CITY, KS—GM will invest $600 million to upgrade its assembly plant here. Construction on a new 450,000-square-foot paint shop, a stamping press and efficiency enhancements at the plant will begin this year.
DETROIT—General Motors is planning to invest approximately $1.6 billion in its North American manufacturing facilities during 2013, in a bid to unveil about 20 new models during the year.
