Shown here in F Sport trim, the new IS continues the themes launched by its own predecessor and evolved by the latest version of the larger GS.
The sports version of the new midsizer also draws on the look of the recent LF-LC and LF-CC concepts, including the large single-piece 'Spindle' grille, a wave-styled headlight design and separate LED running lights.
The profile is dominated by typical Lexus style, with understated character lines and the familiar coupe-like upkick to the rear door's window line.
The CC concept's theme continues at the rear, sharp new tail-lights wrapping around the corners and terminating half-way to the wheel arches.
The cabin also offers a familiar scene, largely mirroring the interior of the new GS with a multi-tiered dash layout, strong lines and satin silver highlights.
Standout features include a large LFA-inspired digital instrument cluster, a large integrated centre display and a tall raked centre console design.
Mechanical details remain unclear for now, though the existing V6-only (in Australia) range is likely to be expanded with an efficiency-boosting four-cylinder option.
Also likely is a hybrid version, which could use a rear-wheel drive version of the 2.5 litre four-cylinder petrol engine and electric drivetrain used in the Toyota Camry Hybrid.
A coupe version of the new IS, again inspired by the LF-CC concept, has also been rumoured, although Lexus has yet to offer any word of plans.
Watch for more details on the new IS to surface as the sedan nears its Detroit debut.
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