Formula One 2010: Team previews

With four world champions on the grid for the first time since 1999, the forthcoming Formula One season promises to be one of the most keenly contested in the sport's history.

Click here or click the image to launch our guide.

Seven-times champion Michael Schumacher's return after three years in retirement has certainly captured the imagination, especially in driving for Mercedes after so many seasons with Ferrari.

Throw into the mix British duo Lewis Hamilton and Jenson Button at McLaren, Schumacher's old adversary Fernando Alonso, now with Ferrari, who also have Felipe Massa returning after injury, and Red Bull Racing pair Sebastian Vettel and Mark Webber, and the title race is wide open.

At the back of the grid we also have the arrival of the new teams in Virgin Racing and Lotus Racing run by rival airline bosses Sir Richard Branson and Tony Fernandes.

Here we take a look at who's who and the ambitions they hold for 2010.