Adrian Newey elected to not attend the Japanese Grand Prix in order to work on the 2014 Red Bull Formula One car.
Three-Time Formula One World Champion Vettel to play an increased role in developing new Infiniti models.
"The fans fear that once Kamui goes outside formula one, then he will not get back in," said Japanese journalist Kunio Shibata.
Triple Formula One World Champion Sebastian Vettel greets thousand of fans in pre-Japanese Grand Prix event
By Nancy Knapp Schilke
Australian Red Bull driver Mark Webber grabs the Japanese Grand Prix pole
Bernie Ecclestone has inked a new five-year deal for the Japanese Grand Prix at Suzuka