The defending champion Infiniti Red Bull Racing team introduced its new car, the RB9, on Sunday at the team's headquarters in England. … The RB9 designation reflects this is the ninth iteration of cars the team has built since taking over Jaguar's F1 team nearly a decade ago. The technical director … An unusual footnote to the F138's development was extensive use of a wind tunnel in Cologne, Germany, originally built by Toyota's now-defunct F1 team. Besides … …

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Motorsports Monday: Showing Off the 2013 Models – NYTimes.com