The fourth and final day of the last Formula 1 test session of 2008 was held today in Jerez de la Frontera, Spain.Two teams, McLaren and Renault, left the circuit yesterday night after having reached their limit of 30,000 kilometres of test mileage for 2008.Scuderia Toro Rosso driver Sebastian Vettel completed 100 laps to set his best time of 1:18.213 with slick tires and 2008 levels of downforce, to edge out BMW Sauber's Robert Kubica by two tenths of a second.Although Nico Rosberg, also on slicks, ended up third quickest despite a spectacular engine blow-up in the afternoon, a lot of eyebrows were raised when Michael Schumacher set the fourth quickest time running slick tires, but with 2009 levels of downforce. Several drivers have struggled to get speed out of the estimated 30 percent cut in downforce levels experienced this week. All Timing Unofficial Pos Driver Team Best Total Laps 1. Vettel Toro Rosso-Ferrari 1:18.213 100 2. Kubica BMW-Sauber 1:18.410 119 3. Rosberg Williams-Toyota 1:18.796 97 4. M.Schumacher Ferrari 1:19.136 58 5. Nakajima Williams-Toyota 1:19.611 76 6. Glock Toyota 1:19.961 58 7. Massa Ferrari 1:20.000 45 8. Bourdais Toro Rosso-Ferrari 1:20.033 87 9. Trulli Toyota 1:20.229 6910. Coulthard Red Bull-Renault 1:20.657 7211. Davidson Super Aguri-Honda 1:20.821 10212. Sato Super Aguri-Honda 1:21.092 8413. Asmer BMW-Sauber 1:21.333 8014. Van der Garde Force India-Ferrari 1:22.321 8115. Rodriguez Force India-Ferrari 1:22.508 82
Vettel goes quickest