Following its 2010 debut at the New York International Auto Show, the Optima became a catalyst for Kia Motors’ tremendous growth and has been the brand’s best-selling vehicle in the U.S. for three years running. Now, five years later, Kia will return to New York on Wednesday, April 1, for the world debut of the passionately designed and obsessively crafted all-new version of its popular midsize sedan.