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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.

Toyota to pay $17.35M federal fine for delayed Lexus RX recall

This summer, we brought you news that Lexus was recalling over 150,000 RX and RX hybrid crossovers tied to its massive pedal entrapment issue. An update to that story included word from the National Highway Traffic Safety Administration that it was considering launching a federal investigation into potential delays by the automaker in notifying owners about the problem. Now comes news that parent company Toyota will pay a hefty $17.35 million in fines for delaying its recall of the 2010 Lexus RX 350 and RX 450h. According to The Detroit News, the Japanese automaker is being forced to pay the maximum fine for delaying recalls - and this isn't the first time. In fact, this is the fourth time since 2010 that Toyota has been required to do so, including paying $48.8M in civil penalties in 2010 for failing to recall vehicles in a timely manner - in three separate campaigns.
In addition to the fines, Toyota has agreed to restructure the way it handles quality control and review "safety-related issues." Though the Japanese automaker has not admitted any wrongdoing, Toyota has agreed to meet with NHTSA for six months on the matter and may extend the meetings another six months.
US Transportation Secretary Ray LaHood says he is counting on Toyota to improve its ability to address such safety issues: "With today's announcement, I expect Toyota to rigorously reinforce its commitment to adhering to the United States safety regulations," he said in a statement.

2021 Lexus ES adds AWD and Black Line Special Edition to lineup

Toyota engineered a Camry with all-wheel drive, so transferring it over to the Lexus only makes sense. The 2021 Lexus ES 250 AWD debuts today, adding all-wheel power to the ES for the first time. Lexus teased the possibility of an all-wheel-drive model at this generation’s launch, but it hasnÂ’t been officially announced until now. Just like the newly-available Camry AWD, this one is exclusively paired with a four-cylinder engine. Besides the Hybrid model, the ES was only offered with a naturally aspirated V6. Now the 2.5-liter four-cylinder migrates to the Lexus with 203 horsepower and 182 pound-feet of torque. ItÂ’s a shame that Lexus hasnÂ’t paired the all-wheel-drive system with the more powerful V6, but it was a task and a half to re-work the Camry with this system already.  You can read all about the engineering behind it in our Camry AWD First Drive. The Lexus uses the same “Dynamic Torque Control” system thatÂ’s found in the Camry to dole out the power rearward. ItÂ’s scanning for front wheel slippage, driver steering input and throttle input, then sending up to 50 percent of the power rearward when needed. The “Torque Control” part of it is not true torque vectoring, but ToyotaÂ’s system can pinch the brakes of the inner wheel when cornering to create the sensation of torque vectoring. Lexus says the ES 250 AWD has the same legroom, trunk room, ride comfort, cabin quietness and vehicle agility as any other Lexus ES. The Camry AWD has its rear seats raised by 10 mm, but thatÂ’s not the case for the ES, as Lexus claims it has the same rear hip point as the front-wheel-drive car. ThereÂ’s a small benefit in fuel economy dropping down to the slower four-cylinder, as the 250 AWD gets 28 mpg combined, whereas the 350 returns 26 mpg combined. If you want more performance, Lexus is making an F Sport version of the ES 250 AWD. 2021 Lexus ES 350 Black Line Special Edition View 8 Photos The 2021 Lexus ES 350 Black Line Special Edition also debuts today. ItÂ’s a limited-run ES based on the F Sport model that essentially amounts to a fancy appearance package. Lexus adds black F Sport wheels with black lug nuts, a black rear lip spoiler and blacked-out side mirrors. There are three exterior colors to choose from: Ultrasonic Blue Mica 2.0, Obsidian and Ultra White. Pictured in the gallery above is the Blue Mica and Ultra White. We like the blue. You also get a two-tone interior, mixing Obsidian and Ultra White with gray stitching.