Red Bull RB8 unveiled

Reigning constructors' champions Red Bull have unveiled their new RB8 car for the 2012 Formula One season. The RB8 is the UK-based Austrian team's eighth F1 car.

The 2012 season will see Red Bull going for a third consecutive constructors' title, having claimed the prize in 2010 and 2011.

Red Bull's Sebastian Vettel has reigned supreme over Formula One in recent years. The 24-year-old German has won the last two drivers' titles, making him the sport's youngest double world champion.

Vettel's veteran Australian teammate Mark Webber had a frustrating 2011 campaign. The 35-year-old won just one race -- the season-ending Brazilian Grand Prix -- and finished the year 134 points behind Vettel in third place.

Lotus displayed their first car since changing name from Renault on Sunday. The Britain-based team's new E20 will be driven by 2007 world champion Kimi Raikkonen and Frenchman Romain Grosjean.

Finland's Raikkonen is returning to F1 having spent the last two years enjoying spells in both NASCAR and the World Rally Championship. The 32-year-old won the drivers' title with Ferrari in 2007.

Swiss team Sauber revealed the new C31 on Monday, with Japanese driver Kamui Kobayashi and Mexico's Sergio Perez putting the car through its paces.