As we reported a couple of months back, the brand new 2013 GS 350 is the next Lexus model to be offered with the brand’s F-Sport package that bundles a host of aero parts with an upgraded chassis and various interior goods.

The new 2013 GS 350 F SPORT will make its first public appearance in the States at the 2011 Specialty Equipment Market Association (SEMA) Show that takes place in Las Vegas from November 1 to 4.

On the outside, the F-Sport is festooned with a comprehensive aero kit that includes a beefed-up front bumper with larger air vents, a modified rear bumper with a diffuser, a boot lip spoiler, unique mesh grille inserts and special badging.

On the rear-wheel drive model, the car’s exterior looks are rounded off with 19-inch alloy wheels shod in 235/40/19 front and 265/35/19 rear tires, which the company says are the largest ever to be used in a factory Lexus sedan. All-wheel drive models will be paired with 235/40/19 all-season tires in the front and rear.

Unique to the F Sport package will be two new colors, a Riviera Red with glass flakes incorporated into the coating and Liquid Platinum. Other color options include Starfire Pearl, Nebula Gray Pearl and Obsidian black.

Inside, the F Sport package adds a bespoke design treatment with smooth striated aluminum trim, special perforated leather trim optionally available in Cabernet Red, black headliner, aluminum pedals and the brand’s logos.

In addition, the driver gets a new 16-way power sport seat that includes a Lexus-first with power side bolsters, thigh support, adjustable seatback and four-way lumbar.

While the F Sport package leaves the 306HP 3.5-liter V6 engine untouched, it upgrades the GS 350’s chassis with a sport-tuned Adaptive Variable Suspension (AVS), thicker anti-roll bars, bushing changes, and new larger front brakes with high friction pads.

As an option, buyers can also fit their F Sport GS with a newly developed Lexus Dynamic Handling (LDH) four-wheel steering system that monitors vehicle speed and yaw rate, steering angle and speed, and lateral G to calculate the required rear wheel steering input, to a maximum DRS angle of 2.0 degrees.

Lexus says that at most speeds below 50 mph (80km/h), the front and rear wheels turn in opposite directions, but in certain conditions at speeds over 50 mph, the front and rear wheels turn in the same direction.

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