Neither Jaime Alguersuari or Sebastien Buemi were happy with their lot at the end of the Bahrain Grand Prix, believing that they should have been further up the finishing order at the Formula One season-opener.

Having shown respectable pace during pre-season testing - although some will query, as they are with Sauber, whether that was true pace or not - both Toro Rosso drivers admitted to expecting to have been more of a factor in the battle for points in Sakhir, but ultimately had to settle for 13th and 16th, the latter not even seeing the chequered flag.

"This first race weekend did not go the way we expected, because, based on the result of our testing in February, we thought we would be closer to the points," team principal Franz Tost confirmed, "Buemi suffered a hydraulic problem on Friday and hardly did any laps. He was therefore unable to find the best set-up and we paid heavily for this in qualifying. As for the race, we have to analyse why he had such a poor start and now we have find out why his car stopped without warning, with what we assume was an electrical problem.

"At least Alguersuari finished the race, in 13th place, so this is another circuit he can tick off his learning book. We will now analyse the whole weekend in the hope of returning to the pace and reliability we had in winter testing and we are looking forward to fighting back in Melbourne."

Buemi was equally mystified as to why his STR5 quit with three laps to run, but had already seen his hopes of finishing in the top ten - and therefore scoring points - dashed at the start.

"I got a lot of wheelspin, so I did not get away well and everyone passed me," the Swiss driver revealed, although the damage done was largely negated the by the chaos at turn one, "After that, the first lap was quite hectic and I got a couple of places back.

"We decided to stay on a one-stop strategy and, for a while, it was going well and I closed on [Pedro] de La Rosa, but those who took on new tyres before me were faster and so they got past me. By the time I pitted, I had lost too many places and, after changing tyres, I got stuck behind Jaime and was unable to pass him. Then, with three laps to go, the car just stopped."

The only consolation either Toro Rosso driver could take from the race was that their fastest lap ranked inside the top ten, ahead of some more fancied runners. Alguersuari posted the eighth best lap of the event, ahead of Michael Schumacher, as he completed his first Bahrain Grand Prix, but admitted that he needed to at least survive the opening phase of qualifying in Australia next time out.

"In terms of my physical condition, I feel that I am in much better shape than last year, when I had very little time to train, but this track was not the best for us and now we must analyse all the data and see how to improve," he noted, "One thing is certain though, we need to qualify better!

"It was positive that I managed to finish the first race of the season, but there is still a lot of room to improve, for me and for the team. We should be in a position to challenge for points, being somewhere around seventh to eleventh in the races, so we will need to work hard to achieve that."