The commercial van segment is exploding in popularity in the US right now with a vast array of recent products from multiple marques, and there's even more on the way from automakers like Hyundai. Mercedes-Benz is trying to grab a bigger share of the expanding market, too, and is launching its smaller Metris here in the fall. Now comes word that Mercedes will construct a $500-million factory in Charleston, SC, that will build the next-gen Sprinter domestically. According to Mercedes, construction of the new plant will begin in 2016, and when complete, the site will cover around 200 acres, including...