BARCELONA, Spain - The 2014 Formula season has been fraught with controversy as the introduction of the new V6 turbo power units proved to be a thorn in the side for many teams and a boon for others.Mercedes used the new engines to its benefit, dominating the first four races of the 2014 season. Ferrari is not performing well with Kimi Raikkonen struggling with the new car. Champions Red Bull have not one a race in 2014 though rookie Daniel Ricciardo has delivered great performances for the team. The 2014 season so far:Australian Grand Prix - March 16 2014Mercedes driver Nico Rosberg led from start to finish as rivals dropped out with mechanical problems in a race that saw Red Bull's Daniel Ricciardo controversially disqualified from second place over new fuel rules. As teams grappled with widespread technical changes, pole-sitter Lewis Hamilton and World champion Sebastian Vettel both retired early, leaving Rosberg victorious by a wide margin ahead of Ricciardo and McLaren's Danish debutant Kevin Magnussen. Ricciardo, newly arrived at Red Bull, was later stripped of the first podium finish of his career for a technical infringement, prompting an appeal from his team.Standings: 1. Nico Rosberg 25 points2. Kevin Magnussen 183. Jenson Button 15Malaysian Grand Prix - March 30 2014Hamilton led the first Mercedes one-two in 59 years. He streaked away from pole position and was never pressured as he finished ahead of team-mate Rosberg with Vettel third for Red Bull. It was the first time both Mercedes drivers have led the field since 1955, when the German marque departed the sport before returning in 2010 and now confirming themselves as the team to beat in F1's new era. Ferrari's Fernando Alonso was fourth and Nico Hulkenberg placed a creditable fifth for Force India. The win was Hamilton's first since Hungary July 2013.Afterwards, Hamilton paid tribute to the victims of the MH370 plane disappearance, which cast a shadow over the race. Standings: 1 Nico Rosberg 43 2 Lewis Hamilton 25 3 Fernando Alonso 24Bahrain Grand Prix - April 6 2014Hamilton and Rosberg repeated their one-two in Malaysia after a thrilling wheel-to-wheel duel as Hamilton equalled the legendary Argentine Juan Manuel Fangio's record of 24 grand prix victories. Sergio Perez gave Force India their second ever podium finish in third. Ricciardo, 13th on the grid, continued his impressive start for Red Bull with fourth, followed by Hulkenberg in the second Force India and Vettel in the second Red Bull completing the top six. Hamilton had been cruising with a lead of more than nine seconds when the safety car was called out on lap 42 of the 57-lap floodlit race. Rosberg, on faster tyres, quickly closed the gap after the restart but Hamilton held off his team-mate's charge in a frantic finale.Standings: 1 Nico Rosberg 61 2 Lewis Hamilton 50 3 Nico Hulkenberg 28Chinese Grand Prix - April 20 2014Lewis Hamilton sealed his first hat-trick of Formula 1 wins and led Mercedes to their third straight one-two finish. The former World champion got away smoothly from pole and was rarely troubled as he finished 18 seconds ahead of Nico Rosberg, with Fernando Alonso third. Red Bull's Daniel Ricciardo outran his team-mate and reigning World champion Sebastian Vettel for fourth spot, with the Force India of Nico Hulkenberg coming home in sixth. There was a bizarre finish when Hamilton was inadvertently shown the chequered flag early, meaning that the race was later declared over after 54 laps instead of the 56 completed.Standings: 1 Nico Rosberg 79 2 Lewis Hamilton 75 3 Fernando Alonso 41Stay with Wheels24 for the 2014 Spanish F1 GP weekend.