Toro Rosso team boss Franz Tost insists that his team is better prepared than ever for the 2010 F1 season following a solid showing in pre-season testing.

The Red Bull-owned team displayed encouraging pace in testing at Valencia, Jerez and Catalunya with the new STR5, the first car solely built by the team at its Faenza base.

In all, Sebastien Buemi and Jaime Alguersuari managed to put nearly 5800km of running on the car during testing and Tost insisted he was happy with how the team and car had performed during 15 days of testing.

"In two weeks, we will be racing in the Bahrain Grand Prix," he said. "It will be Scuderia Toro Rosso's first ever race with a car designed totally in-house. Thanks to an intensive and effective programme through 2009 and the enormous efforts of all our staff and suppliers we were able to get our car out on schedule and I want to thank them for a job well done.

"Because the car was ready on time, we have made the most of the 15 days of testing, during which STR5 has enjoyed excellent reliability. We therefore managed to complete a very respectable mileage with both our drivers, despite the bad weather at the two Jerez tests. It was also important that both Jaime and Sebastien completed a full race simulation here in Barcelona. It means we can arrive at the Sakhir circuit reasonably confident as far as reliability goes. We have also seen that our two relatively inexperienced drivers have learned a lot from these test days and that they have been diligent over the winter in their physical preparation.

"Never before, in its five year history has Scuderia Toro Rosso gone into a season so well prepared. It just leaves the big question - how fast will we be? And the answer to that will have to wait at least until after qualifying and the race in Bahrain."