Lexus has revealed the 2015 Lexus GS F ahead of its global debut at the Detroit Motor Show later this month, it joins the recently launched RC F.

LEXUS IS ADDING another model to its ‘F’ Line, the four-door GS F, which will sit alongside the recently launched RC F coupe. According to Lexus, “The new model combines a refined, four-door design with the speed and agility of a premium sports car”.

2015 Lexus GS F revealed

Details are still pretty thin, but we do know the GS F shares the same platform as the GS and gets a tweaked version of the 5.0-litre V8 which, at least in US trim, will produce 348kW at 7100rpm and 527Nm of torque between 4800-5600rpm. The engine will be mated to an eight-speed automatic gearbox and for fuel efficiency has been tuned to run in both the Otto and Atkinson combustion cycles.

What’s Atkinson and Otto? Basically, when the GS F is cruising, it adopts the Atkinson cycle which means it adopts a shorter compression stroke and a longer power stroke for greater thermal efficiency. Basically, this means the engine, when running at a constant speed, automatically adjusts for fuel efficiency, reverting to the conventional Otto cycle when speed variation is required. This is the same as the engine in the Lexus RC F coupe.

2015 Lexus GS F revealed

Lexus says its Torque Vectoring Differential, which debuted in the RC F, will be part of the GS F’s standard specification. It will operate in three different modes:

  • Standard (default), for a balance of agility and firmness;
  • Slalom, emphasising nimble steering response and agility; and
  • Track, delivering stability in high-speed circuit driving.

We’ll have more information when the GS F is fully revealed on 13 January.


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