At the beginning of 2011, we rocked up to the parking lot at Southern California's Santa Anita Raceway to test the 2012 Lexus GS. This was the first sedan in the luxury brand's lineup to reset its intentions on the balance of sport and luxury. The previous GS had blanched into mute tepidity, and the new generation we drove on an autocross course and on a canyon road corrected just about everything; we liked its looks, and the Variable Gear Ratio Steering- and Adaptive Variable Suspension-equipped car moved its abilities into the realm of a true sports sedan, and it was great to drive. They absolutely nailed it.
In our review of that car, we wrote that the only other sporty Lexus was the IS, and that our favorite among its rank and file is the IS 250 with the six-speed manual. Specifically, we called it "a spirited little weakling of a car." Down on power but also on weight, it rewarded commitment and skill – it didn't have the gumption to compensate for missed shifts and bad lines, and because it was so easy to get wrong, the momentum carried through right to the smiles when you got it right.
Yet no one was ever seriously comparing the IS – Lexus' third-best-selling car – to the BMW 3 Series, and for Lexus that was a problem. You can't have your entry-level sports sedan omitted entirely from the conversation. So now, finally, it is time for the IS to get its dip into Lexus' spindle-grille-and-F-Sport-performance bath.
The aim is high: Chief Engineer Junichi Furuyama said he wanted the IS to be "the most fun to drive in the segment." That was reinforced throughout the presentation and the day with statements that the new IS should react "faithfully to even slight inputs" and that it should "respond to the driver's will." The idea with this model is to build a link from the LFA, down through the IS F, to this F Sport model.
These are goals that are hard enough in light of how cars are growing in size and weight, in general. On top of that, Lexus has to work around the ideas of luxury and refinement that any mention of the brand brings with it. Easy (well, easier) to do when you're charging LFA money, much harder when buyers are checking the bottom line and lease rates carefully. And one only needs to look at where the 3 Series has gone to see how weak the word "sport" has gotten in the phrase "sport sedan."
The next generation IS 250 and IS 350 F Sports were benchmarked against the previous-generation 3 Series M Sport, targeting its driving dynamics, feedback and fun-to-drive factor. While buyers for standard cars in the segment skew female, buyers of tuned versions like F Sports and M Sports skew male, and that's the pie Lexus wants a larger piece of.
Furuyama grouped the changes to the IS into three categories: body and suspension, driver environment and powertrain. Body rigidity has been increased by using more spot welding, a process called laser screw welding, and a lot more adhesive to join body panels at all of the major cutouts – windshield and backlight, door cutouts, engine bay and wheel arches. The front suspension is stiffer by 20 percent through the use of a new front stabilizer. In back, the IS adopts the rear suspension from the GS, separating the spring and the absorber and changing the position of the toe arm. The increased body rigidity also meant they could lower the spring rates. The objective was increased rear grip, a side benefit being that with the suspension towers going more upright there is more cargo room in the trunk.
Another part from the GS used as a starting point for this IS was the steering gear. Better feedback through the wheel and more direct steering have come through refinements like a higher stroke ratio, new ball-screw structure and increased rigidity in the pinion shaft. Lexus also wanted to give drivers the sensation of a clear on-center area.
To raise its dynamic game, the new IS 350 gets the eight-speed Sport Direct Shift (SDS) automatic from the IS F that has "G-AI," programming that makes it sensitive to g-forces and will keep it from shifting during hard cornering when in Sport mode. The 350 also gets the aforementioned Variable Gear Ratio Steering (VGRS) and Adaptive Variable Suspension (AVS) from the GS.
The IS 250 has three driving modes: Eco, Normal and Sport. The IS 350 gets four, adding Sport S+ to the top end. Sport ups the throttle sensitivity, while Sport S+ 'activates' the most aggressive settings on the electric power steering, the VGRS and the AVS.
This is called the Next Generation IS, but it's the cabin and chassis changes that go the furthest. Covered in camo as these cars were, we had to use the light and shadow to make out what we could as best we could, but on the outside this is an evolution of the current design. It doesn't look noticeably bigger than it is now, but it is noticeably more expressive.
Naturally, that starts with the spindle grille in front. The F Sports will be differentiated by exterior design and tuning, and the grilles on these sedans were filled in with different treatments on the 250s and 350s at the event – a six-bar grille up top on the 250, mesh on the 350, and each wore a different lower bumper – but we were told that these differences weren't indicative of the final cars. The headlights, single-lens jobs that are cleaner in design, jut out from the line of the car instead of being contained within it. The side sills are more sculpted and get thicker as they move rearward, then twist to form a character line that runs up the front of the rear wheel arch. It doesn't appear that substantial when viewed straight-on, but when we saw the car driving into the sun you could detect the width – everything below the sill character line is in shadow. That line is met on the other side of the rear arch by a cutline that runs over the tops of the taillights. Behind the arch, another line forms a crease that runs underneath the lights. As for the lights themselves, it almost looks like the current units have been turned over and drawn out a bit more along the sides of the car. And we don't know if the rear track is wider, but the rear arches are definitely punchier.
Instead of a lip on the decklid, the deck is shaped into a spoiler in the center of the car. Below, another crease in the bodywork runs from the bottom of the rear arch up to the bottom of the bumper, creating an effect like a built-in diffuser.
Inside, the interior feels vastly different – moreso than a list of its details would indicate. The driver's hip point has dropped 20 millimeters due to the increased concavity of the seats – and concomitant increase in bolstering. Neither the roof height nor the floor height of the car have changed, but those 20 mm raise the center tunnel and the door shoulder height in relation to your position, so you feel like you're dropped much more deeply into the cabin.
The armrest starts up near the instrument panel, the inclined portion housing the window, lock and mirror switches, sliding down into a flat stretch where one's arm would go. It's a familiar setup and replaces the L-Finesse wave of the door on the current car, where the buttons are placed on a horizontal low and in front.
The vertical slabs of paneling in the current car give way to inclines. The IP doesn't rise, cliff-like, from the center tunnel; instead it slopes up and away toward the windshield and away from the driver, but it isn't canted toward the driver. A vertical feature that houses the vents divides the upper and lower parts of the dash, textured plastic and the nav screen above, hard, shiny bits below. The climate controls have been reworked with eight buttons in two rows underneath a digital temperature readout as opposed to the six buttons in one row on the current car. Beside that readout there are touch controls to adjust the temperature; slide your finger along the silver bar, up to increase the temp, down to lower it, or you can tap either end for the same function.
We were told that one of the primary reasons for rejection of the current car among shoppers is the lack of rear leg room. That has been addressed. In the new car, with the driver's seat set for a driver nearly six-feet tall, hopping in the back seat still left an inch between the closest part of the driver's seat. Leaving one's legs in the scallops of the back of the seat meant even more space. In the previous gen our knees were hard up against the driver's seatback. There is appreciably more headroom as well. And for the first time in an IS, the rear seats fold down in a 60/40 split.
Read more by Jonathon Ramsey at Autoblog.com
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