Currently the most successful engine in Formula 1 is from Mercedes-Benz. Brawn GP won three races out of four with the customer engine that is constructed in the same way as the ones from Vodafone McLaren Mercedes and Force India. The success of Brawn GP marks the outstanding collaboration between the Formula 1 team and Mercedes-Benz Motorsport. Jenson Button and Rubens Barrichello are very satisfied with the performance of the Mercedes-Benz customer engine.