Red Bull's chief technical officer Adrian Newey says his team is likely to lose ground on rivals Mercedes and Ferrari this year due to Formula One's "unhealthy" engine situation.
Red Bull advisor Helmut Marko has predicted another year of Mercedes dominance, saying the current engine regulations will prevent teams challenging the reigning champions.
The first Formula One action of 2016 got underway in Paul Ricard on Monday as Pirelli conducted a wet weather test with 2015 cars.
Red Bull will launch its new livery on February 17, the week before winter testing begins in Barcelona, at an event in London.
Red Bull boss claims Englishman pushed for a drive at Milton Keynes team on multiple occasions before leaving McLaren for Mercedes in 2013.
Watch the video of Max Verstappen taking Red Bull's 2011 title-winning RB7 down the slopes of Austria's famous Streif ski course for a demo run.
The three teams will test different prototypes of the blue-striped wet weather tyre over two days of running at the French circuit.
Daniil Kvyat concedes to feeling frustrated with the strong form of former team Toro Rosso in early 2015 as he initially struggled to adapt to life at Red Bull.
Red Bull technical chief Adrian Newey says there are "no really fundamental differences" between the proposed 2017 regulation changes and the current rules in Formula One.
Red Bull has dropped the "Infiniti" brand from its logo ahead of the new campaign, which will see it run with Renault engines branded as TAG Heuer.
Australian expects to be 'very strong' in 2016 after learning lessons from Red Bull's frustrating and winless campaign last season.
Red Bull's Adrian Newey is concerned his team will struggle against Toro Rosso and McLaren next year if Renault does not make significant progress with its power unit over the winter.
Daniel Ricciardo says the driveability of Renault's power unit was so bad in the opening races of 2015 he was 'getting a headache' from his head getting whiplash.
Australian driver thinks Fernando Alonso's switch from Ferrari to McLaren should be a cautionary tale for any driver tempted to switch teams after a bad season.
Renault confident it can make progress in 2016 after admitting it 'pulled the rug' from under its feet by being too bullish with development ahead of the 2015 campaign.
Daniel Ricciardo thinks former team-mate Sebastian Vettel 'ran with the opportunity' he was given at Ferrari after his winless 2014 campaign with Red Bull.
Daniel Ricciardo believes Red Bull's 2015 chassis was on a par with Mercedes by the end of the season, but was let down by its lack of power.
Red Bull adds teenage trio Sergio Sette Camara, Niko Kari and Luis Leeds to junior team for 2016.
Red Bull has confirmed its title sponsorship deal with Infiniti will be cut short at the end of the year.
Red Bull says Renault's concept for its 2016 has potential, but admits there are still doubts over the French manufacturer's ability to deliver the improvements.
Red Bull has confirmed it will run Renault engines under the TAG Heuer brand next year.
Red Bull has dropped a playful hint about the name of its 2016 engine which may not go down to well in certain offices at the McLaren Technology Centre.
Ron Dennis told the Red Bull boss to "suck it up" when confronted about his decision to block a Honda engine supply deal.