Jean-Eric Vergne admitted it was a shame that his final day of pre-season testing hadn't gone as planned after an engine failure on day two day in Spain.
The Frenchman had posted the quickest time of the morning at the wheel of Toro Rosso's STR7 when his engine – which was close to the end of its running cycle – let go shortly before lunch.
The resultant engine change saw Vergne lose valuable time on track before he returned to action to allow the team to practice pit-stops towards the end of the day – during which time he was knocked back to second on the times by Romain Grosjean.
“Of course it is a shame my winter testing ended with a less than satisfactory day, with not so many laps completed,” he said. “However, yesterday we did a lot of running and the team still has two more days here with Daniel and I believe we can therefore make up for lost time.
“The day was not a complete wash-out, as we got some useful data in the morning and did yet more pit stop practices this afternoon. Since Jerez, the team and I have worked very hard to get me as ready as possible for the season.
“Now, I'm looking forward to taking part in my first ever Grand Prix when the championship starts in Australia.”