1968 Cadillac Deville Base Hardtop 2-door 7.7l 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:    

2019 Cadillac Escalade ESV Drivers' Notes Review | Old, but not antiquated

When the Cadillac Escalade debuted 20 years ago, car-based crossovers were just getting their start. The Escalade was and still is basically a Chevy Tahoe with new styling and a nicer interior. That's especially true today, as our test car has an interior that looks like it was lifted straight from a Cadillac CTS rather than a Chevy Silverado. Crossovers may be more comfortable and fuel efficient, but they can't hold a candle to towing and payload capabilities of a body-on-frame SUV. If you need to haul seven people and a full-size Airstream in quiet comfort, few options are better than the Escalade. This week, our tester was a long-wheelbase Escalade ESV. That means substantially more room both behind the third row and with the seats folded. The Premium Luxury trim sits in the middle of the lineup, but it still comes with a lot of goodies. Features include a Bose audio system, a digital instrument cluster, a heads-up display, heated and cooled leather seats, a heated steering wheel, tri-zone climate control, Magnetic Ride Control and a stout 6.2-liter V8. Options include upgraded leather for $2,000 and polished 22-inch wheels for $600. All in, this Escalade was just shy of $100,000. Editor-in-Chief Greg Migliore: The Escalade is arguably Cadillac's best vehicle. It's a bold, body-on-frame SUV that feels decadently all-American. The Escalade is still contemporary even though it's been years since the ute has had a major redesign. I enjoyed a couple nights in this luxury bruiser. The V8 is powerful, and the 10-speed is a smart improvement. The command seating position is always welcome for me. The interior is nicely laid out, and the materials all look and feel upscale. Not a huge fan of Cadillac's touchscreen (no longer officially called CUE), but it seems to be getting better or I'm getting used to it. Love the Escalade's exterior design. It's dramatic, imposing and gives Cadillac something that's a true style-leader. All that being said, I'll be interested to see how Caddy iterates the Escalade. The Lincoln Navigator is an excellent product and a worthy adversary. Cadillac would be wise to keep its SUV flagship fresh. Senior Editor, Green, John Beltz Snyder: I was not excited to get into the Escalade. This is really not my cup of tea. I used to love the Chevy Suburban, but that fondness has languished as my tastes evolved as these huge vehicles have modernized, losing the charm that drew me to them when I was younger.

Cadillac's Blackwing V8 was the best engine at the worst time

It should be clear that GM knows how to innovate and engineer excellent products when it wants to. Cadillac's 4.2-liter twin-turbo Blackwing V8 is recent proof of that. Yet, as related in an extensive Road & Track piece, the Blackwing became victim to some of The General's bugbears, like the reticence to — for whatever reasons — unleash its excellence everywhere, fund that excellence, and be consistent with that excellence over the long term beyond the Corvette and full-sized pickups and SUVs. The R/T story relates tales told by "several people deeply involved with the Blackwing project" about how an engine 18 years in the making was deprived of its reasons for being in less than three. Starting around 2000, GM spent a dozen years building Cadillac up to the point where the American luxury brand could rationally flip to the chapter called, "Taking the Fight to the Germans, but for Real this Time." The first steps in the plan meant an exclusive platform and an exclusive engine. The platform was called Omega. You know the engine's name. They were going to be the aluminum-blocked fist and velvet glove enabling Cadillac to break on through to the other side of luxury — proper luxury to global standards, that is — with a range of beautiful and dynamic crossovers and sedans. An engineer involved in the project estimates GM poured $16 million into the Blackwing's clean-sheet development. Many more seven-figure sums went into creating the first sedan on the Omega platform, the CT6. The automaker dropped millions again poaching ex-Audi and Infiniti chief Johan de Nysschen, and moving Cadillac's headquarters to New York City in 2014. Further pallets of cash funded the development and debut of the Escala concept at Pebble Beach in 2016. In 2018, GM revealed its dramatically named DOHC twin-turbo V8. Considering what came before, the Blackwing clearly wasn't designed for cars. It was designed for world domination. However, against the backdrop of plummeting sedan sales, the CT6 didn't sell like GM had hoped. The automaker hesitated to marshal another fleet of Brinks trucks to fund entries into a cratering bodystyle. Removing sedans from the world domination equation created more difficult math for the crossovers and the Escala.