Red Bull team principal Christian Horner has declared a potential future link-up with either Porsche or Audi as "eye-wateringly exciting".
The Volkswagen Group this week moved a step closer to entering both brands into F1 in 2026 after its supervisory board gave the green light, pending the outcome of the finalised regulations, notably with regard to the sport's sustainability plans.
Since Honda pulled out of F1 at the end of last season, Red Bull has been linked with a tie-up with Porsche, even though its own Powertrains department is set to become operational from May.
With VW's decision accelerating plans for a partnership with Red Bull, Horner can naturally only see the benefits.
"Firstly, it's great news for Formula 1 that brands such as Porsche and Audi are looking at entering the category," said Horner, when asked as to a preference over which brand he preferred to partner with.
"And it's great to hear there is that clear intention subject to the regulations to enter
"Now, where we are on our journey, it's non-dependent on an OEM [original equipment manufacturer] coming in and partnering with the team.
"But, of course, it would be very logical to hold those discussions, and now we have that clarity from VW's side, it would be sensible for us to engage in more detailed discussions.
"It's exciting for Formula 1, it's exciting for Porsche and Audi, and a potential link-up with Red Bull would be eye-wateringly exciting."
Audi has so far been linked with a purchase of McLaren, although it is understood talks have stalled, leading to a possible tie-in with Sauber that runs Alfa Romeo.