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Barcelona - Test 4 -Day 1 - McLaren

25 February 2010 @ 17:03 GMT - Max Moore Date: Thursday February 25 2010 Drivers: Jenson Button Location: Circuit de Catalunya, Barcelona Track Length: 4.655km Weather: Consistently warm all day, with increased windy spells in the afternoon Track temperature: 28.9°C (maximum) Air temperature: 18.8°C (maximum) Laps run today: 101 Laps run in total at test: 101 Kilometres covered today: 470km Kilometres covered in total at test: 470km Best lap time today: 1m23.144 at 16:46 Best lap time of the test: 1m23.144 Drivers for tomorrow: Lewis Hamilton Duration of test: Four days (February 25-28) First day of the final test of the winter. Jenson kicked off running in Barcelona this morning, concentrating primarily on mechanical and aerodynamic set-up work. Despite not setting any headline laptimes, the team declared itself pleased with progress, gaining a greater understanding of the behaviour of the Bridgestone tyre over a long run. For tomorrow, Lewis takes to the circuit. He continues today’s programme, developing set-up and working with the tyres. Jenson returns to the cockpit on Saturday before Lewis concludes the running on Sunday.