Lexus has unveiled its new GS medium executive model in California, ahead of the car's arrival on the UK market in 2012.

The Japanese premium brand said  the new GS brings a more engaging driving experience, bolder design and a more spacious, contemporary interior, heralding a new chapter in the history of Lexus.

It incorporates a bold spindle grille - set to be a signature feature of future Lexus models - and redesigned chassis with a wide, strong stance, greater cabin and boot space yet while leaving exterior dimensions virtually unchanged.

The new Lexus GS will be launched in early 2012, including hybrid and F-Sport versions.

For the UK there will be the GS 450h full hybrid and GS 250 petrol engined derivatives. Details will be announced later this year.