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Prototypes for the completely redesigned 2014 Lexus IS have been spotted in the U.S., and though they are heavily camouflaged a few key details about the upcoming sedan can be ascertained. We can clearly see elements of the car’s new spindle grille, which looks to be the most aggressive iteration of the corporate Lexus grille we’ve seen thus far.
The overall dimensions of the car haven’t changed much compared to the current IS, though the profile appears much more streamlined. The trailing edge of the roof has been masked with additional padding to hide the new shape, but we know from previous comments made by a Lexus exec that the design will be rather striking.

At the rear, we can see a sharp crease leading from the top of the fender to the trunk lid, as well as what could possibly be new inverted L-shaped tail-lamps inspired by the units on the LF-LC concept car. Beneath these is a pair of fairly conventional oval exhaust tips.
Though there are claims the 2014 IS will utilize a stretched version of Toyota’s rear-wheel drive platform underpinning the Scion FR-S and its Subaru BRZ twin, a more likely scenario would see the new IS ride on a shortened version of the GS’ platform. Giving credence to the latter was the sighting of early test mules for the new IS wearing a similar suspension setup to the one in the GS. This means that the new IS may feature adjustable damping and active rear steering, just like its bigger brother.

As for the powertrain lineup, a new four-cylinder engine is expected to replace the current IS 250’s 2.5-liter V-6, while the new IS 350 should pick up a version of the 306-horsepower 3.5-liter V-6 found in the GS 350. Further down the track a new hybrid model will be launched, as will a high-performance IS F model, though it’s unclear at this point whether it will stick with a V-8 or downsize to a force-fed V-6.
Stay tuned as development progresses, and look for a debut of the 2014 Lexus IS at a major international auto show within the next 6 months or so.
