LEXUS GS F SPY PHOTOS
But photos snapped this week of a Lexus GS circling the Nurburgring Nordschliefe appear to confirm that yes, a GS F is coming, and yes, it's in an advanced state of development.
The bodywork is broadly similar to that of a GS 350 F Sport, but with the addition of a front chin spoiler, short side skirt extensions ahead of the rear wheels and a larger bootlip spoiler.
But the real tell-tale sign that this is something more than the average GS is the quartet of stacked exhaust pipes poking out of the rear bumper, which have been a signature feature of the IS F since its launch.
The wheels have a BBS-style mesh design and appear to be wider, though they may not be representative of the production wheel.
The larger brake package lurking behind them though are another clear indicator that this will be the performance leader of the GS range.
As for that roll cage, it's likely just there as a safety requirement for on-track testing.
At this point it's difficult to speculate on what engine might power the GS F.
The chief engineer of the 2013 Lexus IS, Junichiro Furuyama, confirmed to TMR that a new engine was under development for the next-generation IS F and upcoming RC F, but it's not clear whether this engine (which could potentially be a naturally aspirated V8 or a low-displacement twin-turbo V8) could see service in a GS F model.
TMG's TS 650 uses a twin-turbo development of the IS F's 5.0 litre V8, but that's unlikely to be emissions-compliant with the Euro VI emissions standard.
A detuned version of the LFA's bespoke V10 has also been rumoured, but cost may be a limiting factor for that motor.
We should find out soon enough though. Rumour has it that the GS F will officially break cover in the second half of 2014, and go on sale as a 2015 model.
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