Heikki Kovalainen said he was pleased to get some wet weather running under his belt after Friday practice for the Brazilian Grand Prix.

Ahead of his second outing with Lotus, the Finn was fourth quickest after two tricky sessions in conditions that started wet and got steadily worse as the day wore on.

Reflecting afterwards, Kovalainen said he was pleased with the performance of the E21 in the wet even if there are still improvements to be made.

"Obviously, it was challenging conditions but it was good for me to get the experience in the wet weather," he said. "There were no big surprises and the car was behaving quite well. It was a little bit trickier than driving in the dry, but we expected this.

"That said, I think the team have made good progress in this area as it wasn't too difficult to drive. There are still a couple of areas where we can improve on, and whether we have valid information for tomorrow's weather we don't know yet."

Team-mate Romain Grosjean agreed that there was more to come from the team having posted the tenth quickest time and admitted it had been a challenge on track in the conditions.

"It wasn't perfect weather and we still have some progress to make on the wet set-up for conditions like we had today," he said. "In the morning it was a struggle for grip with too much understeer, but we made progress in this area for the afternoon and have a few ideas about how we can improve further for tomorrow.

"It's certainly a challenge with the spray and standing water, but despite this it's still awesome to be driving around Interlagos."