Ferrari's Fernando Alonso and Sebastian Vettel of Red Bull topped the timesheets in the first and second practice sessions respectively in the Formula One Spanish Grand Prix.
Alonso was the leader of the pack in a soggy first session at the Circuit De Catalunya, but could only manage second in the drier conditions of the second session.
Vettel was at the top of the leaderboard with a time of 1:22.808, with Alonso close behind on a time of 1:22.825. Mark Webber was third in the timesheets posting 1:22.891.
"We have some new parts here but the days of big, big upgrades don't really happen now with the regulations how they are," Vettel said. "This afternoon was fairly conclusive, but this morning wasn't really much good with the weather.
"It's hard to say much about the harder tyre, I think the number of pit stops will be the same here in this race as at the last few."
Alonso said the Ferrari looked good in the two sessions, but did not want to get carried away.
"The signs from today are positive, as we were quick in both the morning and afternoon and the car seems to be well balanced on light and heavy fuel loads," he said. "But it is always premature to try and draw conclusions on a Friday when everything seems to be going well, because in the past we have seen how our competitors can take off in qualifying.
"We have a great deal of data to analyse this evening, especially because the rain in the morning meant we had to squeeze almost all our planned programme into the second session when it was dry. The feeling is definitely good and even though we are aware it won't be easy, we are sure we can fight it out with the best."
Webber said he was looking forward to putting in a few more good lap times on Saturday, while hoping for a good result come raceday Sunday.
"It looks reasonably tight," the Red Bull driver said. "We couldn't have got more out of it today really, the weather made things a bit tricky, but it was a pretty good day overall. We had a few things to test this morning which we had to move to the afternoon when the weather was better - but it was okay. We still have work to do tonight. It's a nice Grand Prix to come to - one of the most popular of the year."
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