Welcome to coverage of first practice for the season-ending Abu Dhabi Grand Prix weekend.

Still no sign of action on the track as the teams work on their cars, without much urgency.

Vettel, who was 23 on July 3, would be the youngest ever world champion should he finish top.

Vettel relaxed in the garage, chatting to Dr Helmut Marko.

Hamilton back in the pits. No one has set a timed lap as yet.

Michael Schumacher makes a brief appearance before Hamilton emerges.

The track temperature is 31 degrees Celsius. Vitaly Petrov's Renault the only car on track.

Here are the teams' standings. Red Bull have been dominant.

Webber comes in and the track falls silent. The teams are content to wait for better conditions rather than risk their vehicles.

Glock was on slicks when he ran off track at a slow speed. Webber out on inters. Can he become the first Aussie champ in F1 since Alan Jones?

Timo Glock runs wide while Vettel returns to the pits.

Vettel makes his way around Yas Marina on intermediates, his first proper run. He and Webber helped Red Bull take the constructors' title last time out.

Adrian Sutil tours in the Force India. Slicks suit most of the track, but turn 11 at the start of the marina complex is still wet, being in the shade of the grandstand. /// resus: "i just want to wish all the drivers goodluck as this is the last race.its going to be clean race with alot of surprises and the master will win"

Fairuz Fauzy, driving Heikki Kovalainen's Lotus in this session, spins on his installation lap. D'oh.

Alonso was on intermediate tyres before coming back in. Can he become F1's youngest triple world champion on Sunday? /// KAE: "Forza Ferrari......go Fernando"

There was little attention paid to drainage when the circuit was built, but as the sun shines more forcefully it will dry out no problem. Parts of it are completely dry already, while parts of it are mostly damp. Robert Kubica and Fernando Alonso have been out.

Christian Klien is first out, with Lucas Di Grassi, Jaime Alguersuari and Sebastien Buemi following. The track is still very damp, with some dry lines clearly visible.

The 90-minute Friday morning session begins.

Watch Webber's

Rival Red Bull team-mates Vettel and Mark Webber have been given the nod to race each other full-on for the title in Sunday's race. /// restus: "tactical teamwork will be in place for redbull to win the champ."

There was a short shower an hour ago - only the second time it has rained in four days. The track is quickly drying.

So what would our own Lewis Hamilton have to have happen to claim the crown for a second time? Something pretty extraordinary...