1974 Cadillac Eldorado Base Convertible 2-door 8.2l 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 can't keep up with Escalade demand, can't move its sedans

No matter how much Cadillac revitalizes its lineup and its image, it seems that all consumers want is the Escalade. In fact, Automotive News reports that General Motors can't keep up with demand for the fullsize luxury SUV, despite sticker prices that start at over $70,000 and approach six figures at the top end of the spectrum. Contrast that with sedans like the ATS and CTS, which are far cheaper but which Cadillac hasn't been able to move fast enough to keep up with production, prompting both the manufacturer and dealers to offer substantial incentives to keep them from piling up. Cadillac had been resisting a price cut of the ATS or CTS, lest it hurt resale values – itself a factor that could explain consumers' reluctance to buy them in the first place – but been offering subsidized leases, discounted financing, rebates and cheaper options. Combined with incentives from individual dealers, according to AN, buyers can be looking at five-figure discounts on buying a new Cadillac sedan. And now, finally, it seems the CTS will indeed get a little bit off its bottom line. Yet GM has been producing the ATS and CTS at rates that their sales can't keep up with. The automaker was forced to idle the plant in Lansing, MI, where it assembles the ATS and CTS for six weeks starting this past December. And since it reopened late in January, it's been reduced to a single shift as dealers try to move the metal they've already got. Meanwhile the plant in Arlington, TX, that produces the Escalade and its Chevy and GMC siblings has been running on overtime, with three shifts throughout the week and even into the weekend to keep up with demand. Profitable as it's been for Cadillac and GM, though, the Escalade does not represent the future of where it wants to take the brand - separating the Escalade as almost a brand unto itself that's been left out of the company's new naming scheme. If only it could make its sedans as successful as its fullsize SUVs, it'll be all set.

Cadillac XTS to become Opel flagship sedan?

According to Auto-News.de, Opel is considering using Cadillac's all-new big sedan, the XTS, as the base for its new flagship car, which would likely carry the name Omega.
WorldCarFans.com speculates that Opel could use GM's 3.6-liter direct-injection V6 that generates 304 horsepower or, possibly, a 2.8-liter turbocharged six-cylinder engine that creates 321 horsepower to power the vehicle. The European automaker could even use a 195-horsepower turbocharged four-cylinder engine in this application - fine, since many of Europe's largest sedans are powered by smaller, more efficient engines.
Regardless of power, the Omega could arrive at dealerships by the end of 2013.