Romain Grosjean said it was mainly Renault issues which prevented Lotus from doing more running on the second day of testing in Bahrain.

After a difficult first day on which Grosjean managed just eight laps in total, early running on the Thursday soon stopped and he was only able to add another 18 laps to his tally. Having pointed the finger at Renault on Wednesday, Grosjean again said he didn't know what had caused most of the problems because they came from the Renault side.

"It's something Renault can tell you more about," Grosjean said. "One of [the problems] I think was on our side and then again something with batteries and stuff like that."

Related Articles

Having completed his running in the car, Grosjean will hand over to team-mate Pastor Maldonado and says he hopes more progress can be made over the next two days.

"We didn't have many laps today. We didn't have that many issues but they just take a long time to resolve and a few of them we are not sure why. So hopefully things will turn in to better shape in the next few days with Pastor. We had one run of ten timed laps in the day just to give us an idea of how the car is and to check that nothing is falling apart, so that's what we did."

However, Grosjean did say he had managed to get a small feel for the car during the 26 laps he managed across his time in the E22.

"It's not a bad starting point but there is a lot that we would like to do. Driveability is not perfect, the turbo we need to understand a bit more, the brakes sometimes do a bit different to what you would expect... It's hard to get everything together as we would like but in general I am OK with it."