HOCKENHEIM, Germany - Nico Rosberg is having a good week. Already leading the Formula 1 Drivers' championship, he got married, his beloved national team won the soccer World Cup and he signed a new Mercedes deal worth a reported equivalent of R794-million."Just need to win my home GP now!" he exclaimed ahead of Sunday's 2014 German Formula 1 race on Sunday (July 20),It is less smooth sailing in reigning champion Sebastian Vettel's world but he has Rosberg's sympathy. He told news agency APA: "It's definitely difficult if you're so used to success and then suddenly the car is no longer the best - especially as he is such a competitive guy."TEMPORARY STRUGGLE?Nonetheless, even with things going so well for Rosberg, Vettel insists he is not tempted to jump ship. "I'd rather be in my car," Vettel told the German weekly Bunte. "The fact that things are not going so well is clear but I think that is just for the moment."Red Bull is very special to me, not only because of the past years in F1 but also because of the support it gave in the very early years in my career."Still, he acknowledges that his car is not the only problem; team mate Daniel Ricciardo is obviously doing "a better job" at the moment. Vettel agreed: "He makes fewer mistakes than I do so I have to pay him the necessary respect."Stay with Wheels24 for the 2014 German GP this weekend.