PRINCETON, IN - Production of the all-new 2011 Sienna minivan is underway at Toyota Motor Manufacturing, Indiana (TMMI) in Princeton, Ind. The new Sienna was styled at Toyota's Calty Design Research Center in Newport Beach, Calif., and developed at the Toyota Technical Center in Ann Arbor, Mich.

Toyota invested approximately $450 million to upgrade the Indiana plant, according to the automaker. More than 4,000 employees work at the facility.