2006 Lexus Es 330 on 2040-cars

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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.

Lexus launches supercharged LX 570 in Middle East

The Lexus LX SUV is a very muscular, old-school vehicle. Based on the Toyota Land Cruiser, it's still a big, body-on-frame SUV, but inside it offers acres of leather and luxury tech. The brand's Kuwaiti distributor is taking it machismo even further for the local market with the new LX 570 Supercharger.
As the name suggests, the upgraded SUV grafts a supercharger onto the LX 570's 5.7-liter V8 to boost it to 450 horsepower, from 383 hp in the naturally aspirated version in the US (or 362 hp in the standard Kuwaiti version), and it uses the same six-speed automatic as the standard model. To signal the improved strength, much of exterior chrome is replaced with black trim. It also wears special 20-inch wheels and a rear spoiler. The interior is fitted with crimson leather seats and red-accented carpet. It also gets an aluminum sill plate that says "Supercharger." Like the standard Kuwait-spec LX 570, it has two fuel tanks with a total combined capacity of 36.46 gallons, which should help satiate the likely thirsty, forced-induction V8.
The LX 570 Supercharger won't be rumbling down streets outside of the Middle East, though. According to Lexus spokesperson Bill Kwong, this is a project by the distributor in the region. The supercharged engine also has "issues with emissions" in the US, especially in California, he told Autoblog. Too bad, it would be an interesting Range Rover alternative.

2015 Lexus RC 350

Luxury coupes like this new, 2015 Lexus RC 350 have got, to my mind, a more challenging mission than their all-out-performance variants; in this case, the recently reviewed RC F.
That's not to say that I think actual owners and shoppers of cars like the RC F, BMW M4 and Cadillac CTS-V Coupe only care about output figures and lap times. In fact I'd say that those are outliers in terms of how they get used most often. But the story that we reviewers tell - and that shoppers in the ego-boosted segment tell themselves before they pull the trigger - have a lot to do with what the car is capable of on the edge of its envelope.
Mainstream coupes can't rely on that kind of irrational pull, however, at least outside of the emotional world of styling persuasion. For a buyer to drop more than $40,000 on the RC 350, he or she will want tons of features, comfort, good looks, and, yes, a dash of sportiness to spice of the pot. Reason and desire seem a lot more balanced here. That's great news for Lexus, with its history of creating sensible luxury cars and a pretty composed luxury coupe in this new RC.