Red Bull have three more weeks to find a new engine for their F1 car

A solution needs to be found by 21-22 November

(Getty Images)

Red Bull owner Dietrich Mateschitz has extended the deadline to find an engine supplier for next season for three more weeks.

Having originally given team principal Christian Horner and motorsport advisor Helmut Marko until the end of October, Mateschitz is now willing to wait until the weekend of November 21-22 for a solution to be found.

He told Autosport: "I extend the deadline for three more weeks.

"The situation is clear, we won't get any of the existing powertrains because all teams fear that we would be faster than their own works outfits."

Red Bull are unhappy with current partner Renault, but have not been able to secure another supplier, leaving their place on the grid for 2016 very much in doubt.

Talks with Ferrari and Mercedes appear to have been unsuccessful and there have been mixed messages about a potential deal with Honda.

Mateschitz said: "There remain a few complicated solutions; however, I do not know if I should be going through these."

After dominating the sport between 2010 and 2013, the last two seasons have been disappointing, with Red Bull currently a distant fourth in the constructors' championship.

PA