Merkel and Koch (CDU) sits in a Opel Astra Twintop convertible during her visit at the 61st International Car Show in Frankfurt. Angela Merkel, Christian Democratic Union's (CDU) top candidate for the upcoming general elections in Germany sits in a Astra Twintop convertible of German car manufacturer Opel during her visit at the 61st International Car Show in Frankfurt September 17, 2005. The world's biggest car show, IAA, will be open to public until September 25. REUTERS/Alex Grimm