Red Bull on Tuesday revealed its new car for the 2011 season featuring the number 1 for reigning World Champion Sebastian Vettel.
Photographs of the RB7, which is an evolution of the dominant title-winning car of 2010, were published on the team's official website shortly before a blue sheet was pulled off in the Valencia pitlane by Vettel and Mark Webber.
The RB7's designer, Adrian Newey described the RB7 as the next stage in a 'successful lineage' of Red Bull F1 cars.
"What we have done is taken the philosophy of continuing evolution. We have evolved RB6, which itself was an evolution of 2009’s RB5, and this is, if you like, the third generation of a successful lineage.”
Renault Stuns F1 With 'Invisible' Exhausts
According to widespread speculation at Valencia, Renault's claim that its 2011 car is "aggressive" and innovative is not just standard pre-season rhetoric.
Many insiders were left impressed and scratching their heads after the new black and gold R31 was unveiled in the Ricardo Tormo circuit pitlane on Monday.
Even the closer inspection of close-up photographs did not solve a mystery about the whereabouts of the car's engine exhaust exits -- amid rumours the outlets could even be near the front of the car for aerodynamic purposes.
Team owner Gerard Lopez told reporters the 2011 car is "quite revolutionary in a number of areas", and technical boss James Allison is quoted by Auto Motor und Sport as saying the R31 is a "very bold design".
France's Auto Hebdo quoted Allison as saying: "It is right to say this car is ambitious and differs in its entire concept not only from last year but from all the cars previously made by this team."
Auto Motor und Sport also said the purpose of two channels alongside the airbox and engine cover is "not yet apparent", adding that an element of the rear wing is "also unusual".
Also exciting the technically-minded observers is the Red Bull-like pull-rod rear suspension, but Polish driver Robert Kubica told La Gazzetta dello Sport that he is not setting his heart on race wins.
"I don't want to say too much because the last time we spoke about winning races, I was with BMW and half the season was a disaster," he said.
Sauber Reveals 2011 C30 Car
Sauber on Monday became the next team to reveal its 2011 car.
Photographers captured the new C30 in the chilly Valencia pitlane, where group testing will begin 24 hours later.
The Ferrari-powered car is outwardly similar to the 2010 model and features the familiar white and grey livery, punctuated by some new sponsors brought mainly by new Mexican driver Sergio Perez.
"We have managed to secure our business foundation for the 2011 season. In these economically straitened times that is something we can be proud of," said team owner and boss Peter Sauber.