2023 Cadillac Escalade Sport Platinum on 2040-cars

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Why an independent rear suspension for GM's new, full-sized SUVs wasn't easy

A Motor Trend report last month laid out how Cadillac's 4.2-lier twin-turbo Blackwing V8 could be an orphan due to cost concerns in the GM empire. Last-minute chassis changes to Cadillac's new sedans and XT6 crossover led to engine bays that couldn't fit the Blackwing. On the SUV side, according to the report, the new independent rear suspension for big people haulers cost so much to implement that GM ruled out reworking the Escalade to accept the Blackwing. At least one commenter rightly asked how could a suspension swallow that much money. A new piece in Motor Trend has the answer. The excellent Alissa Priddle spoke to Tim Herrick, GM's executive chief engineer for full-size trucks, about why the clean-sheet IRS cost "multimillions of dollars."  First, GM would need to build a new body shop at the Arlington, Texas plant that assembles the automaker's big SUVs to stamp the numerous wholly new parts and panels accommodating an IRS. Then GM would need to design and pay for a new assembly process. On top of those up-front costs, there was the incremental cost of the four-link IRS components being more expensive than those in the trucks' former leaf-sprung solid axles. Herrick endured so many rejections for so long that he remembers the date and time when he got approval for the new unit. He said it came down to a meeting where he told a higher-up, "I'll make you a deal: If we get to the reveal, or if we launch this and you think this was a dumb idea, I'll hand you my badge and let you walk me out." Head to Motor Trend to read the full story. Based on Herrick being on stage to help present the new SUVs to the press, and on our First Ride in the new Chevrolet Tahoe and Suburban at GM's Milford Proving Grounds, it appears this will have a happy ending for all involved. Furthermore, since Herrick worked on the T1 platform that supports the big SUVs as well as the light- and heavy-duty pickups, he understood the demands on the commercial side, too. That could be why when Roadshow asked Tim Asoklis, chief engineer of the Tahoe and Suburban, if the new IRS could endure life in the Chevrolet Silverado and GMC Sierra, Asoklis answered, "Oh, absolutely." Related Video:    

Cadillac's XT6 is not, for better or worse, a mini Escalade

In its latest attempt at reinvention, Cadillac has created a trio of admirable sedans — the ATS, CTS, and CT6 — cars that challenge or beat the competition on their own terms, and do so with audacious exterior styling rendered in a distinctly American idiom. But American customers have been ditching cars in favor of high-riding crossovers, and what Cadillac has not had up until recently is a suite of appropriately (or bizarrely) sized crossovers to offer potential consumers, something competitors have been deploying for years or even decades. And so the new, full-size(ish) three-row Cadillac XT6, unveiled officially last week at an event in Detroit, is intended to help address the premier domestic automotive luxury brand's current product shortcomings. "I guess we had so many priorities and had to decide what's the most important thing," says Andrew Smith, Cadillac's executive director of design. "We decided to approach this one from an interior perspective, to do things like provide ease of use for owners, upgrade the infotainment, and allow time for ourselves to learn lessons from the launch of XT4." The XT6 doesn't exactly break any new ground within the segment, but that's not necessarily a criticism. Though huge from a sales perspective, the two-box crossover category is not the industry's leader in beauty or innovation. Still, Caddy's most recent previous crossover, the size-Small XT4, managed to create handsome proportions and a premium appearance at first glance. The XT6 doesn't feel quite so ambitious or coherent, with a front end that is at once sneering and soft, a lengthy flank that feints at muscularity without delivering, and a rather abrupt tailgate that blends the rectilinear and the anodyne. Maybe consumers won't notice? "Our biggest challenge was giving the vehicle a character that works on this scale and platform," says Smith. "We want to make sure all of our cars feel different. We didn't want it to be a mini Escalade. No one wants a mini anything. But we wanted to give it Escalade presence, but in scale. So it's this combination of nice, and aggressive. I'm convinced we will sell more than we think we'll sell." Maybe he's right, and we definitely don't see this vehicle cannibalizing sales of the Escalade. People who want a bold Cadillac can still get that one, and will have a brand new option later this year, we expect, when a new Escalade is released.

Cadillac president de Nysschen says electrification coming 'across the spectrum'

We like to pick on new Cadillac president Johan de Nysschen for his insistence, many years ago, when he was president of Audi of America, that plug-in vehicles are for idiots. Listening to him give the keynote address at the Washington Auto Show today, you wouldn't know he ever said anything negative about an electric vehicle. Instead, he sounds something like a EV-angelist. De Nysschen said that Cadillac will be able to benefit from GM's considerable expertise in plug-in technology, which he said would be "applied across the spectrum of our portfolio." GM's electric committment will help in "making electrification commonplace." With the plug-in ELR already on the road, de Nysschen said that the company's next step in advancing powertrains will be the introduction of stop/start technology – which de Nysschen called an "important system to reduce fuel consumption and CO2 emissions" – into a Cadillac for the first time later this year. Without giving any specific details, de Nysschen said that Cadillac will introduce eight new models (not necessarily plug-ins) by the end of this decade, including five that "will take Cadillac into market segments where the brand is not even present today." These new vehicles will likely be much lighter than today's vehicles, de Nysschen said, because "weight reduction today is critical to automotive design, it helps to improve fuel efficiency and contributes to desireable vehicle dynamics." The key is to reduce weight without compromising safety or comfort and to use the right material – steel, aluminum, carbon fiber – in the right place at the right time. It was a not-so-subtle jab at Ford and its new aluminum F-150. "In the pursuit of weight reduction, some manufacturers have also opted for abandoning steel and have gone for an all-aluminum approach," he said. "At Cadillac, we believe that different materials each present particular advantages in specific applications. There is no single material that represents the optimum balance of the conflicting objectives of every single application." Related video: