(http://media.il.edmunds-media.com/non-make/ns/ns_525114_196.jpg) General Motors said it will expand its Detroit-Hamtramck assembly plant, where the next-generation Chevrolet Impala will join the Volt and the redesigned Malibu in production in calendar year 2013.
Source: GM Will Add 2014 Impala to Detroit-Hamtramck Plant (http://www.insideline.com:80/chevrolet/impala/2014/gm-will-add-2014-impala-to-detroit-hamtramck-plant.html)