The current generation Lexus GS->ke439 has been around for quite awhile with its sales starting way back in 2006, so to say that the luxury car was due for a little refresh is a bit of an understatement. This is especially true considering the competition is heating up with the upgraded Mercedes E-Class->ke373 and the BMW 5-Series->ke317. Alas, the car gods have spoken and test mules for the next generation GS have been spotted. The new Lexus GS will be launched in 2012 and will, for the first time, get a GS-F version.

The 2012 GS will be built on a brand new platform which will be sportier and more efficient. The engine line-up will include a new V6 engine and a 3.5 liter engine that will replace the current 4.6-liter V-8. A hybrid version has also been confirmed.

As for the GS-F version, it won't get the same 4.8 Liter V10 engine as the LF-A. Instead Lexus->ke47 will offer an upgraded version of the 5.0-liter V-8 from the IS-F, developing around 450 HP. It will also get a torque vectoring differential on the rear axle and a weight reduction thanks to the use of carbon-fiber. The GS-F will go on sale in 2013.

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