Quote Originally Posted by Japé View Post
Sorry totally off-topic, but with frustration from Citroen WRT financing situation, I just had to copy paste to here the current Motorsport.com top news:

"TAG stays with Red Bull despite losing engine name deal. TAG Heuer will remain a partner of Red Bull Racing despite the arrival of Honda meaning that the watch manufacturer can no longer brand the Formula 1 team's engine."

Like what?! Sometimes the financing and marketing side of the motorsports teams is hard to comprehend.
I think at the time redbull and Renault's relationship was a little on the frosty side, with redbull threatening to move to honda engines if renualt didn't pull their finger out. With Lotus not long being rebranded as Renault works team I think it was decided, when redbull continued with Renault engines, to rebrand them as tag engine.