Red Bull Racing and Toyota have been singled out as possible dark horses ahead of the 2009 world championship.

Red Bull Racing and Toyota have been singled out as possible dark horses ahead of the 2009 world championship.

When asked about the winter form of other teams this pre-season, Renault driver Fernando Alonso said: "Ferrari are always fast, like McLaren.

"Toyota have been very good these past days. We are competing against huge rivals, all giving a hundred per cent, and hoping that they will fail," the Spaniard was quoted as saying by Diario AS at the Jerez test.

On the last two days of the Spanish session - initially in the wet but on a dry track on Wednesday - Toyota's Timo Glock was quickest at the wheel of the new TF109.

Renault's winter form with its unique R29 has been varied, as Red Bull, Toyota and Williams have changeably impressed. Numerous voices in the pitlane suggest BMW-Sauber may be sandbagging.

Alonso's teammate Nelson Piquet added: "Red Bull seem really fast, but you know that Ferrari and McLaren will be faster. I believe BMW is just behind the top two and then it's the rest of us."

Ferrari driver and 2008 runner-up Felipe Massa told Italy's Corriere dello Sport: "It looks as though Red Bull and Toyota are going to be strong."