CEO of Volkswagen AG , Martin Winterkorn , is pictured with the company logo prior to the automobile manufacturer ' s general meeting in Hamburg , Germany , 24 April 2008 . The event is overshadowed by the power struggle of two of the major VW - shareholders , Porsche and Niedersachsen ( Lower Saxony ) . The major issue is the 20 per cent blocking minority , which secures the power of veto to the federal state of Lower Saxony , when facing important decisions . Porsche tries to increase the blocking minority to 25 per cent by changing the constitution of the company . EPA / Marcus Brandt < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >