Jolyon Palmer has been confirmed as part of the Lotus F1 team's testing line-up for the group session that follows this weekend's Spanish Grand Prix at the Circuit de Catalunya.

The Briton has become a regular fixture in the team's Friday morning plans at recent grands prix, having enjoyed outings in the FP1 sessions in both China and Bahrain, but will now expand his role with a day behind the wheel of the E23 at the first of the year's in-season tests, which follows round five of the championship over 12-13 May.

Palmer has impressed in his two free practice runs so far this season, performing strongly alongside Pastor Maldonado in both Shanghai and Sakhir and finishing just 0.441secs behind his more experienced team-mate, in 14th position overall, last time out.

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Now, after a three-week hiatus, he will participate in Friday's opening practice session in Barcelona, a circuit he is familiar with from both his junior racing career and the pre-season F1 test in February. On that occasion he focused on development work, running through an intense programme of tyre and aero assessments as Lotus attempted to get its E23 fettled for the start of the campaign, winding up eighth fastest on the day.

"I am really pleased to be back in the car for Barcelona," Palmer admitted, "It is nice to be back at the track having already driven the car there in the official pre-season test back in February and, after a three-week gap since Bahrain, I'm already looking forward to starting the weekend."