MONTE CARLO, Monaco - Nico Rosberg won Formula 1's showcase Grand Prix here for Mercedes on Sunday, 30 years after his World champion father Keke's triumph on the streets of the Mediterranean principality.The pole-to-flag win, after two safety car deployments and a 25-minute stoppage caused by Pastor Maldonado crashing his Williams, was only the second of the German's career - as it was for his Finnish father in 1983.Red Bull's triple World champion Sebastian Vettel made it a German 1-2 to extend his championship lead to 21 points over Finland's Kimi Raikkonen - 10th - after six of the 19 races.'IT'S REALLY SPECIAL'Rosberg's success, on the familiar streets of a town that has been home since his early years, made him the first son of a Monaco GP winner to win the most glamorous race on the calendar."It's amazing. This is my home, I've grown up here all my life and it's really special," Rosberg said. "The whole weekend went perfectly. The car was really good, the tyres held on and that was the key to the victory. I am ecstatic."Mark Webber, 2012 winner and Vettel's team mate, was third ahead of 2008 World champion Lewis Hamilton in the second Mercedes.Raikkonen scrambled to his 23rd consecutive scoring finish - one short of Michael Schumacher's record - after making up three positions on the last lap just when it seemed his hopes had been dashed by a collision with McLaren's Sergio Perez.Ferrari's Fernando Alonso also fell back in the title challenge after finishing seventh; Force India's Adrian Sutil was fifth and McLaren's Jenson Button sixth.Vettel has 107 points, Raikkonen 86 and Alonso 78.