Fabio Leimer admitted he had been able to learn an invaluable amount from his day of running with Sauber after joining the team on the opening day of the Young Driver Test in Abu Dhabi.

The Swiss driver went into the test on the back of a victory in the GP2 feature race over the course of the weekend, with the Tuesday test being his first chance to sample F1 machinery.

A solid performance saw Leimer set the fourth quickest time and he admitted he had learned a lot from his experience of F1 that he can carry into his 2012 racing programme.

Leimer hands the car over to Esteban Gutierrez for the remainder of the test.

"To me it was good day," he said. "I was able to improve from the morning to the afternoon, and I learnt a lot for my future. I wasn't only impressed by the power of the car, as actually I didn't expect it to be so nice to drive. It is so stable and smooth when riding the kerbs compared to a GP2 car.

"I was a bit worried about my neck before the test, but this wasn't an issue. What I could feel in the end was that the concentration needed during the entire day was quite intense. Obviously I had to learn a lot about procedures and switches. All in all, I'm happy with what the team and I have done today - it was a great day, full of new experiences."