Kovalainen Friday's fastest in Abu Dhabi

Heikki Kovalainen set Friday's fastest time at the brand new Yas Marina Circuit in Abu Dhabi, edging teammate Lewis Hamilton with a 1:41.307 in the second session.Jenson Button was third on a day of domination for Mercedes power.Hamilton had led the morning practice, the outgoing world champion topping the newly crowned one. Sebastian Vettel was third in the Red Bull.Young Kamui Kobayashi continued to impress, fifth fastest on the day while subbing for Timo Glock.A quiet morning session gave way to a more adventurous afternoon, but while several drivers went off course, no serious were of note. Temperatures were on the hot side, and combined with Formula One's first twilight race, it should prove an interesting spectacle to end the season.First sessionLewis Hamilton, McLaren – Mercedes, 1:43.939Jenson Button , Brawn - Mercedes, 1:44.035Sebastian Vettel, RedBull - Renault, 1:44.153Rubens Barrichello, Brawn - Mercedes, 1:44.207Nick Heidfeld, BMW Sauber, 1:44.667Sebastien Buemi...