Toro Rosso has launched the STR9 at Jerez ahead of the first F1 pre-season test.

The team's 2014 car was unveiled by drivers Jean-Eric Vergne and Daniil Kvyat in the pitlane at Jerez, with testing set to get underway on Tuesday morning.

In response to the new 2014 regulations, the STR9 features a narrow nose like the McLaren, and the livery is broadly faithful to that which the squad has been used since its d?but in 2006.

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The 2014 season will be the first time that Toro Rosso uses Renault engines, having switched from previous supplier Ferrari in order to match sister team Red Bull.

Tuesday morning will see Red Bull, Mercedes, Marussia and Caterham launch their cars at the circuit, while Force India will also unveil its new car properly having released an image last week.

In total, ten of the 11 teams in the 2014 world championship are running at Jerez. Only Lotus has decided to miss the first test, and will therefore be absent this week.

Full story and images to follow