The RB8 saw Sebastian Vettel snatch the drivers’ title from Fernando Alonso and the constructors’ title despite having a lean patch at the start of the season. And now with the RB9, Red Bull will be hoping to start the season strongly and surge ahead of the competition. Described as an “evolutionary car” by Red Bull technical director Adrian Newey, the RB9 in its new purple livery will be looking to help Vettel claim his fourth crown. The new Red Bull F1 car doesn’t use the ‘vanity panel’ to hide the step nose unlike other manufacturers. The car retains the slim nose from last year’s car which helps increase downforce. The other changes to the design are in the sidepods and revised rear bodywork. And apart from the purple livery, the sidepods now have the Infiniti badging instead of Red Bull. "It's very much an evolutionary car with the devil very much in the detail as we've tidied up a few bits from last year," Newey told reporters during the launch. “We obviously had a very tight championship battle last year and it was difficult trying to develop last year's car and do the research into this year's car. It gave us a very tight time-frame to manufacture this car. To have it here today, two days before the first test, is a remarkable effort,” he added. Vettel said that he expected a strong challenge for the 2013 title. "The best drivers are in the best teams. We are racing against the best teams and drivers and it is easy for you to make out who they are,” the German told reporters during the car’s launch in Milton Keynes. "People expect something [from Red Bull but more than that we expect to do well ourselves. There is a lot of pressure. I'm excited to get back in the car, go racing. It will be tough to beat Mark, tough to beat the other guys, the other teams. The last three years have been very good for us, we managed to beat them but there is no guarantee that we will keep winning," he added. Fans would love to see a repeat of last season’s title clash which provided great excitement.