2006 Lexus Gs-300 Sunroof on 2040-cars

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Next Lexus RX looks ready to roll

Lexus' bread-and-butter crossover, the RX, has been long overdue for a substantial redesign, with the current third-gen crossover entering its sixth year on sale. Considering this, it's no surprise that the fourth-generation RX is well on its way to production readiness, as evidenced by our latest round of spy photos. This new model looks larger than the current RX, like the wheelbase has been stretched, which would likely explain reports that the company was looking at an optional third-row for the mid-sizer. Aesthetically, the Lexus spindle grille is easy to spot, as are its aggressive headlamps. It's unclear based on these images if the RX will adopt the same styling statement seen on the RC, IS and NX, with sharp LED running lamps mounted below the actual headlights, but it certainly seems likely. Besides the design changes, our spies report that Toyota will be working hard to shed weight, likely through the use of aluminum for the doors, hood and rear hatch. Underhood, expect the typical combo of a gas-powered six-cylinder as well as the V6/hybrid setup found in Lexus' 450h models. As for when we could expect to see the next-gen RX, your guess is as good as ours. Geneva is, as always, a candidate, as is April's New York Auto Show. Of course, should we confirm a debut at either show, we'll be sure to let you know. Stay tuned.

2021 Lexus IS teased, will be revealed next week

While the larger Lexus GS has finally been discontinued after declining sales, its smaller sibling is getting a new generation. The new 2021 Lexus IS will be revealed next week, and in the meantime, Lexus released this teaser image. It doesn't reveal too much, and the company was smart enough to make some adjustments so that playing with exposure and brightness in Photoshop wouldn't reveal anything more. All we can tell is that it's a sedan, it gets a full-width taillight design, and there's a bit of a diffuser treatment to the rear bumper. Lexus does confirm that this generation will be rear-wheel-drive, not that we were worried that would change. What we're left wondering is what will power those wheels. Previous rumors have speculated it could get a BMW inline-six from the Supra and Z4. Others have reported the current range of engines, including a turbo four-cylinder and a naturally aspirated V6, will carry over, and the 5.0-liter Lexus V8 could join the group. Fortunately we won't have to wait long to know the truth. The Lexus IS will be revealed on June 9. You can be sure to see it here on Autoblog. Related Video:    

Why is there a huge bulge in 2021 Lexus IS 300 AWD's driver footwell? We explain

After an initial turn a few weeks ago for the 2021 Lexus IS first drive review, the revised luxury sedan has returned to the Autoblog garage for a second look. This middle-of-the-road IS 300 AWD pairs a 260-horsepower V6 with a six-speed automatic transmission and four driven wheels, and frankly it's the least interesting way to spec out the redesigned sedan. While there are cars in this segment designed to get a performance boost from their all-wheel-drive systems even in dry conditions, the IS isn't one of them. Adding insult to injury, you get stuck with a cramped driver-side footwell care of the engineering shenanigans that went into making this system possible.  While we've mentioned this particular compromise before, we rarely touch on the reasons why it exists in the first place. The fundamentals are fairly obvious; the standard IS utilizes a longitudinal, rear-wheel-drive powertrain. As is typical with this configuration, the transmission sits in a tunnel beneath the center console. This arrangement works just fine, provided you don't need to power the front wheels.  To do so in a traditional car like the IS requires a literal end-around maneuver involving the engine and transmission, which we've diagrammed for you below care of MSPaint. This is a bit simplified for the sake of this write-up, and it should be noted that this is not the only way to implement AWD in an inherently RWD platform, but it illustrates how the power for the front axle (red) and rear axle (blue) flows from the transmission to the drive wheels. To get juice flowing to the front axle, Lexus had to add a parallel output shaft, exiting the transmission from the front with enough clearance for the bell housing and engine, which sits between the transmission and the front differential. This requires quite a bit of lateral reach, meaning the housing has to extend much farther out than usual to accommodate it (yellow arrow). As a result, the all-wheel-drive transmission looks a lot like a sci-fi gun with a chunky drum magazine hanging off the side of it. The hump (above right) in the footwell is there to clear this protrusion. This basic configuration isn't unique to Lexus. In fact, if you look at a BMW xDrive cutaway, it's similar. So, why no "hump" in other cars? There are multiple factors, but to boil it down to what is most relevant, it's a combination of the resulting shape of the Lexus transmission housing and the size of the IS chassis.