Nissan offshoot Infiniti and the Red Bull F1 team have announced a two-year sponsorship partnership at the Geneva motor show.
There had been speculation that the Japanese brand could use the Renault-Nissan partnership to rebadge the Renault engines that the Red Bull team currently uses.
It emerged during an Infiniti press conference - as Red Bull team boss Christian Horner and F1 world champion Sebastian Vettel arrived to tour the stand - that the deal would not extend to an engine deal, but both parties continue to talk about the deal in cryptic terms.
Horner said: "Red Bull has always taken a different approach, so when the Infiniti executives outlined their innovative plan to us we were very open to working with them. Coming off the back of our 2010 Drivers' and Constructors' World Championships, we feel even more excited to be starting the 2011 season with a new and committed partner like Infiniti."
The innovative nature of the deal also extends to not quite explaining what it entails, aside from 'high-profile marketing and technical activities around Formula 1'.
The focus at the Geneva show has been on the Etherea concept, an ambitious take on the luxury hatchback.