Military and commercial vehicle maker AM General will start making Mercedes-Benz SUVs this summer under a new, multi-year contract with the German automaker. AM General will make the R-Class SUV at its commercial vehicle plant in Mishawaka, Indiana. The R-Class, which comes with six or seven seats, was briefly sold in the U.S. but has been sold exclusively in China since 2013. Mercedes doesn't release sales numbers for individual models in China, but in a presentation last year the company said it sold 12,700 R-Class SUVs in 2013. Mercedes says it needs to move production of the R-Class from its...