Red Bull join the list of teams threatening to quit

Red Bull Racing have become the first non-manufacturer team threatening to quit Formula One if the FIA push ahead with their proposed budget cap.
Motosport's governing body recently announced that next year's Championship will see the introduction of a £40million budget cap with the stipulation that those teams signing up will be given various technical freedom.
This includes unlimited out-of-season testing, double the KERS power boost, unlimited gearboxes and a flexible front and rear wing.
The FIA's decision, though, hasn't gone down well with many of the sport's manufacturers. While both BMW and Toyota have threatened to quit, Ferrari President Luca di Montezemolo warned that F1 is "not a never-ending story" for the Italian marque.
And now it appears that some of the privateer teams aren't impressed either with Red Bull adding their voice to the growing discontent.
"If the proposed rules for 2010 stay unchanged, we will not take part in the 2010 Championship," Red Bull owner Dietrich Mateschitz told the Salzburger Nachrichten newspaper.
"Teams of manufacturers will no longer take part. Of the teams now, only two or three will remain."