Kimi Raikkonen put Lotus at the head of the order on the final morning of Formula 1 preseason testing at Barcelona on Sunday.
The Finn, who had worked through a program of five-lap simulations on soft and medium rubber during the early hours, completed a number of single-lap runs in the final hour and set the pace in 1m22.030s – the best time achieved at Barcelona during pre-season running.
Raikkonen, who finished the morning with 41 laps to his name, as 0.22sec faster than home hero Fernando Alonso, who completed 63.
Alonso's best time also came on soft tires, backing up claims that while the Ferrari F2012 may not have great long-run pace, its single-lap speed is not in question. He focused on short runs; his longest being a pair of four-lap stints.
Bruno Senna was third fastest for Williams, the Brazilian having his final run in the car before handing over to Pastor Maldonado for the afternoon. Force India's Nico Hulkenberg and Sauber's Kamui Kobayashi were next up.
Sixth was Lewis Hamilton, the McLaren driver making up for the time lost to a wet circuit and Jenson Button's hydraulics problems on Saturday by completing 60 laps – more than anyone other than Alonso.
Seventh, after a late run on supersofts, was Vitaly Petrov's Caterham, while Michael Schumacher was one spot further back in his Mercedes, having run extensively on softs.
Daniel Ricciardo was ninth quickest, but was only 1.1sec off the pace. Significantly, however, he completed the longest run of the morning – 11 laps – on mediums and suffered only a 1sec drop-off in performance during it. By contrast, Senna's Williams – completing a 10-lap run on the same tires at the same time – lost 2.5sec of pace during the stint.
Sebastian Vettel, trying the upgraded Red Bull RB8 for the first time, spent most of the morning in the pits and completed only five flying laps. Vettel's morning was hampered by a damaged front wing.
Pos Driver Team Time Laps
1. Raikkonen Lotus 1m22.030s 41
2. Alonso Ferrari 1m22.250s +0.220 63
3. Senna Williams 1m22.296s +0.266 53
4. Hulkenberg Force India 1m22.312s +0.282 45
5. Kobayashi Sauber 1m22.386s +0.356 56
6. Hamilton McLaren 1m22.430s +0.400 60
7. Petrov Caterham 1m22.795s +0.765 43
8. Schumacher Mercedes 1m22.939s +0.909 57
9. Ricciardo Toro Rosso 1m23.393s +1.363 53
10. Vettel Red Bull 1m23.608s +1.578 15