Jenson Button has broken the lap record at Barcelona on the fourth day of testing at the Spanish track.
The BAR driver lapped the Circuit de Catalunya over four tenths quicker than the previous record which was set at the track last year.
Button was driving the hybrid 005 chassis and finished almost a second ahead of Ferraris Michael Schumacher, who had his first spin in an F1 car since the Japanese GP last year.
The German was on the pace from the off setting the quickest time in a Ferrari this week. Test driver Luca Badoer was the other Ferrari in action; the Italian was just three tenths of Schumacher in fifth place.
Fernando Alonso continues to keep his nose in the action setting the third quickest time for the third day running. Today though the Spaniard was driving the new Renault R24 bettering Trullis time in the same car by nearly two seconds.
The second Renault was driven by Frenchman Franck Montagny who finished the day in 12th spot.
The Williams trio of Ralf Schumacher, Juan Pablo Montoya and Marc Gene found themselves further down the order after dominating the test sessions for the past two days.
Schumacher was once again the quickest of the three in the FW26, which was also driven by Montoya.
Further down the order was Germanys Nick Heidfeld who returned to the Jordan cockpit once again. The team have yet to announce their drivers for this season and no doubt Heidfeld will be doing his utmost to impress.
Heidfeld was joined in the Jordan garage by Timo Glock, who made his F1 debut with the team on Tuesday and although he finished at the bottom of the timesheets he managed to knock over a second off his time.
In Valencia David Coulthard and Kimi Raikkonen continued to put the MP4-19 through its paces.
The Scot was again the quicker of the two and managed to break his own lap record set in November last year.
Testing continues at both tracks on Friday.
Testing times from Barcelona
1 BUTTON BAR 1m14.607s
2 M.SCHUMACHER Ferrari 1m15.410s
3 ALONSO Renault 1m15.506s
4 R.SCHUMACHER Williams 1m15.736s
5 BADOER Ferrari 1m15.767s
6 GENE Williams 1m15.820s
7 MONTOYA Williams 1m16.251s
8 PANIS Toyota 1m16.507s
9 FISICHELLA Sauber 1m16.529s
10 SATO BAR 1m16.560s
11 WEBBER Jaguar 1m17.173s
12 MONTAGNY Renault 1m17.447s
13 HEIDFELD Jordan 1m17.530s
14 KLIEN Jaguar 1m18.029s
15 BRISCOE Toyota 1m18.106s
16 GLOCK Jordan 1m18.236s
Testing times from Valencia
1 COULTHARD McLaren 1m09.697s
2 RAIKKONEN McLaren 1m10.06ss