Stefano Coletti pleased with improved form on second day of testing

The GP2 race-winner drove on the opening day of the test before sitting out Wednesday. He ended this morning's running seventh fastest after improving his best time of the test by three quarters of a second.

His best time was set on Pirelli's 2011 soft compound rubber, although Coletti admitted that he lost a little time because he did not maximise the DRS during the lap.

"We're happy," Coletti told AUTOSPORT. "On my best lap, I missed the DRS on on one of the long straights, so we lost a bit of time there, but we did what we had to do.

"We came here for testing - not performance. It was nice to be part of the development of an F1 team and it was good running. I could feel the car more and I was getting better.

"We did a lot of testing again on the aero like we did on the first day, so I did a few stints with different things on the car. Then I did a long run at the end of the morning."

The 22-year-old admitted that he is keen to get back into F1 machinery as soon as possible after handing his car over to Kevin Ceccon for the afternoon session.

He is hopeful of future F1 opportunities to allow him to put what he has learned this week to good use.

"Half a day wasn't enough today because I wanted to get back in in the afternoon," he said. "But that wasn't the programme. I'd like to get back in a car soon.

"This was a big chance to gain a lot of experience. You don't get experience like this in other categories. I learned a lot on tyres and about aero in this day-and-a-half and I hope that I get the chance to learn more in the future."