The Red Bull RB6 is a Formula One motor racing car designed by Red Bull Racing for the 2010 campaign. It was driven by 2010 World Champion Sebastian Vettel and Mark Webber and was launched on February 10 at Jerez.

Vettel, who (since joining Scuderia Toro Rosso) makes it a habit to give his racing cars names, named his RB6 "Luscious Liz". However, after unspecified minor damage was found on this chassis after the Monaco Grand Prix, the team gave Vettel a new chassis, which he then named "Randy Mandy."

The car claimed the first of four consecutive World Constructors' Championships for Red Bull Racing, and in the hands of Sebastian Vettel, took the first World Drivers' Championship of his career at the last round of the season. In qualifying, the RB6 was a consistent pace setter, setting the fastest time in 15 out of the 19 rounds. Red Bull's chief technical officer Adrian Newey later went on to claim that the car was "probably the car with the most downforce in the history of F1".

In 2014, before his final race with Red Bull, Vettel stated that the RB6 was his favorite Formula One car to drive in his career to date.

During qualifying for the 2010 Bahrain Grand Prix, Sebastian Vettel set the fastest times in Q2 and Q3 clinching pole by just over a tenth of second from Ferrari's Felipe Massa. From the lights Sebastian Vettel led until lap 33 when the car had what was at first thought to be a broken exhaust but was later revealed to be a spark plug problem which reduced the power and straight line speed. Over the remaining laps of the race Vettel dropped down to fourth behind both Ferraris and Lewis Hamilton where he would finish the race. Webber finished 8th.

Vettel achieved his second consecutive pole position in Australia, while Webber qualified in second position. Technical problems plagued Vettel for a second consecutive race when a loose wheel nut ended his challenge while leading. Webber had to stay on track longer as Vettel pitted for dry tyres, and finished in ninth position after a late-race incident with Lewis Hamilton. In Malaysia the Red Bull drivers scored a dominant 1-2 finish, with Vettel winning. In China they took the front row of the starting grid, but rain affected the race and they finished in sixth and eighth positions. In Spain Webber won the race with teammate Vettel finishing third after a major brake problem in the last 8 laps. In Monte Carlo Webber again took pole position and dominated the race. Sebastian Vettel passed Robert Kubica's Renault on lap one and remained in second position for the remainder of the race distance, completing Red Bull's second 1-2 of the season. In Turkey Webber claimed pole again in qualifying, while Vettel managed third, behind Lewis Hamilton. In the race, Vettel managed to overtake Hamilton during pit stops to be in second place for much of the race. Webber and Vettel were on course for Red Bull's third 1-2 of the 2010 season, until lap 40 when Vettel and Webber crashed into each other as a result of an attempted overtake by Vettel. The crash forced Vettel out of the race and put an end to Webber's chance of victory. The race ended in a McLaren 1-2 instead of a Red Bull 1-2, with Hamilton winning and Jenson Button coming in second. Webber eventually finished in third place. Webber managed to hold on to first place in the Drivers' Championship, with a five-point lead over second placed Button. Vettel however slipped to fifth place. Red Bull also surrendered first place in the Constructors' Championship to McLaren, albeit being behind by only one point. In Canada they finished 4th and 5th and are now 22 points behind. In Valencia, Vettel won his first race since Malaysia while Webber had a spectacular accident where he collided with Heikki Kovalainen and flipped over at 190 mph (310 km/h) and hit an advertising board, escaping unhurt from the incident.

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