A settlement reached on April 21 between German car maker Volkswagen and U.S. regulators and car owners over alleged violations of the clean-air rules is just the beginning of a process of redemption for the company. First, the automaker has to manage what could be a lengthy and complex process of repairs and recalls of the vehicles covered by the agreement. Over the longer term, it has to rebuild consumer trust and perhaps reset its original goal of becoming the world’s biggest automaker and temper its growth ambitions in the U.S., while overhauling internal processes to prevent future lapses, say Wharton experts. Under the terms of the agreement reached with the U.S. Environmental Protection Agency (EPA), the California Air Resources Board and a group of Volkswagen vehicle owners, the automaker would repair or buy back some 482,000 vehicles that do not meet emissions standards.…