The first multi-team testing session took place at Circuit de Catalunya, Barcelona in November 2008, two weeks after the end of previous season. All teams, except Toyota, took part in the testing session where some teams tested their new aerodynamics package and slick tyres. The new look cars did not suit everyone's taste, with BMW Sauber's test driver, Christian Klien, labelling the car the ugliest car he'd ever seen. On 9 March, testing at Barcelona featured for the first time Brawn GP, who made an immediate impact by leading the times early in the day. The test, the first in which all teams used their 2009 cars, had BMW Sauber leading the times while Brawn GP finished fourth. On day three, Brawn GP's Jenson Button was fastest by just over one second to Ferrari's Felipe Massa, while Button's teammate Rubens Barrichello went even faster the next day. At the other end of the timing sheets, reigning champion Lewis Hamilton's McLaren team were struggling to adapt to the new regulations, often 1.5 seconds off the pace. Massa stated he had never seen McLaren so far behind.