Complex sentence: The controversy has had an impact on Volkswagen's overall business; the company was subjected to legal proceedings, regulatory investigations, and class action lawsuits in multiple countries, and Volkswagen's stock prices experienced a major decrease in value.
Split into simpler sentences: The controversy has had an impact on Volkswagen's overall business. The company was subjected to legal proceedings, regulatory investigations, and class action lawsuits in multiple countries, and Volkswagen's stock prices experienced a major decrease in value.