Pedro de la Rosa leaves the pits in the Toyota TF109. © Pirelli

Night begins to fall over the Yas Marina Circuit in Abu Dhabi. © Pirelli

The TF109 on Pirelli's wet weather tyres is put to the test on the artificially wet track . © Pirelli

The TF109 on Pirelli's wet weather tyres is put to the test on the artificially wet track . © Pirelli

The tyres look to be holding up well as De la Rosa tiptoes around the wet track. © Pirelli

De la Rosa zooms past the Yas Marina hotel in the background. © Pirelli

The Spaniard enters the pits to conclude yet another test run. © Pirelli

The floodlights glint off the TF109 and the shiny track surface. © Pirelli