Jean-Eric Vergne continues to out-pace his rivals on the second day of the Young Driver Test in Abu Dhabi.

As he continued to get used to the RB7, the Frenchman posted a best time 0.091s quicker than Ferrari's Jules Bianchi, but 0.177s off his own best from yesterday.

The day was less productive for the Austrian team than yesterday due to sensor issues affecting running in the morning and a KERS issue in the afternoon.

"We had quite a disjointed morning due to some sensor issues which interrupted our run programme and this afternoon we lost more track time with a KERS issue," said Head of Race Engineering, Ian Morgan. "The issues are resolved now and at least we were able to complete some laps which provided useful data, hopefully tomorrow will be more productive."

Once again, Jules Bianchi was on duty for Ferrari, the Frenchman working on two main areas: new components linked to engine management and an evaluation of the experimental tyres brought here by Pirelli.

"It was another good day of testing," said Bianchi. "I was able to do a lot of kilometres and so we were able to complete all the planned programme, while I was also able to improve on my lap time from yesterday. It's valuable work for the team, because we have accumulated a lot of data which will be important for the development of the 2012 car."

Having shared the MP4/26 with Oliver Turvey yesterday, today Gary Paffett had the McLaren all to himself. The Englishman completed 71 laps on his way to posting the third best time of the day, albeit 1.5s off Vergne's pace.

The Woking outfit's day was spent running different casings and compounds, with some positive results. Background running also included putting mileage on several development parts intended for next year's MP4-27A chassis, as well as gathering data for correlation purposes.

Despite an early stop in the day due to fuel-pressure issues, the team says it was another positive day. Oliver Turvey will return to the cockpit tomorrow.

Valtteri Bottas enjoyed his second and final day with Williams, the Finn handing over to Mirko Bortolotti for the final day of the test tomorrow.

"We had a busy tyre test programme today," revealed Race Engineer, Tom McCullough. "We started the performance tests and also completed some longer runs. We had a small electrical issue in the middle of the day which lost us a little track time unfortunately, but we have lots of interesting data to go through which will help us with the development of next year's car.

"Working with the engineers trackside, Valtteri has done a very professional job for us again, driving consistently all day," he continued. "He got the most out of the car we gave him and gave us some really useful feedback on the Pirelli tyres. It's been a solid job by him the last two days."

"It was really good to work with the team again today," said Bottas, "I feel we achieved what we wanted to. Physically it was as demanding as the first day with the heat and different levels of G-forces; it was hard work but in the end wasn't a problem. It has been a great opportunity for me here and I have really enjoyed every moment."

Johnny Cecotto was behind the wheel of the Force India VJM04, the youngster getting his first experience of a Formula One car. The 22-year-old Venezuelan acquitted himself well as he familiarised himself with the car before carrying out a tyre programme in the afternoon.

"Amazing is the only word to describe today," said Cecotto. "Everything was just incredible from the moment I left the pits to begin my first lap. These cars are so impressive: the power, the braking performance and the aerodynamic grip you get through the corners - it makes you say 'wow'. And there are so many systems on the car, too, such as the KERS, which really impressed me. It was good to try out some of the 2012 tyres in the afternoon and the team seemed happy with the data and my feedback. Overall it was just an unbelievable experience to work at such a professional level, with a great crew, and I want to thank Sahara Force India for giving me such a wonderful opportunity."

"Today saw a continuation of the programme that we started yesterday with Max," added Race Support and Strategy Engineer, Oliver Knighton. "We began with some familiarisation runs for Johnny to get him comfortable in the car and he quickly got a good grasp of the control systems on the car, and was switching modes without being prompted. The technical programme focussed on more data collection for the 2012 Pirelli tyres and we also did some aero sweeps in the afternoon. Overall it was a good day's work: Johnny has settled in well with the team and gave excellent feedback."