Jan Charouz admitted he had hoped to post a quicker time after his day of testing with the Lotus Renault GP team in Abu Dhabi.
The Czech driver enjoyed a busy day of running in the R31 as the third driver to test with Renault over the course of the week.
Trying out a range of different tyre compounds, Charouz posted a best time of 1min 44.470secs which was good enough for tenth quickest, although he admitted he could have gone quicker.
“I really enjoyed the day,” he said. “The main priority was to try some new parts and to experience some different tyres and we managed to do that. We did a lot of laps which was really good for me. I'm happy that the team trusts me to do the development work with them, so that's what we did for most of the morning.
“In the afternoon we did some quicker laps but I didn't manage to do the lap times I wanted to do. I have to improve myself but otherwise I was consistent in the long run and I'm really happy Lotus Renault GP gave me the opportunity to do this test. It is not the first time I have driven an F1 car and I really like using the DRS and KERS. It is really nice to use these - I really enjoyed today.”
Charouz's run with Renault came after an outing with HRT on Wednesday, where was eleventh fastest despite an engine change being required during the day.
“It was really nice driving for HRT,” he said. “It was great that we had a lot of tyres to test, which is something that I need a lot because my biggest problem is getting the time out on new tyres. I liked working with the team as they were very professional; we had an engine problem in the afternoon and I've never seen anybody change an engine so quickly! I encountered some traffic on my last run on supersofts and I was only able to do one lap.
“It was a great experience and it would be great to drive again. I was feeling more comfortable lap by lap as I was getting to know the car better and how different controls worked. It was also my first chance to use DRS which was really nice to experience, there are so many things you have to do at the same time and it was good to start to get used to it.”