1982 Cadillac Seville Base Sedan 4-door 4.1l 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:    

It's going to cost $12 billion to fix Cadillac

The Cadillac CT6's development predates Johan de Nysschen taking over at Cadillac, but the forthcoming flagship is the luxury brand's first major new product launch since the beginning of his tenure. The vehicle's debut also marks the beginning of a comprehensive $12 billion renewal plan bringing eight new vehicles in the next five years. Now, the former Audi and Infiniti exec is talking about joining Caddy and the company's future. "Cadillac will be a powerhouse global luxury brand that will command the respect of its peers," de Nysschen said about the forecast state of the company in 2020 to Bloomberg. He disclosed that three of those new vehicles under the five-year plan would be crossovers and reiterated that plug-in hybrids are on the way that would take advantage of the Chevrolet Volt's tech advances. De Nysschen also reminisced about joining Cadillac last year. He told Bloomberg that leaving Infiniti wasn't an easy decision, and there were apparently long conversations on the phone with General Motors President Dan Ammann discussing strategy for the luxury brand. De Nysschen was apparently clear that a greater investment and more autonomy from the corporate mother ship were vital. These days, the revitalization of Cadillac is just getting rolling. The company has a swanky New York office with a dedicated team to focus on the future. According to de Nysschen, the brand will grow its staff to around 150 people by the end of the year, compared to over 40 now. The marketing plan is to position the American luxury brand as a more distinctive product versus more common German rivals. It's going to be very interesting to see if this new Caddy can dare greatly enough to accomplish these lofty goals.

A few signs that Cadillac's revival is taking hold

Only a flatworm would not have predicted the Cadillac ATS would help increase sales for America's erstwhile luxury brand of record; however, even the best automotive oracles didn't realize by how much: The ATS fueled a 49-percent increase of the brand's year-on-year sales in March, the sixth straight month of growth for Cadillac. The momentum helped push General Motors to post a 6.4-increase in sales in March versus 2012, leading its domestic competitors.
Dealership salesmen are among the first to register the shift occurring at Cadillac. A Texas dealer related an incident in which he helped a mother affix a baby seat in a car for a test drive, explaining that as opposed to the older buyers that are still a Cadillac mainstay he's getting "a pretty diverse group that's coming through the door now" who are "younger and better educated." Aided by incentives on the ATS, Cadillac's sales are up 38 percent so far this year, overtaking Acura as the fourth best selling luxury brand, and GM stock is benefiting with incremental gains because of it. Based on early response, the new 2014 Cadillac CTS should keep things going in the same direction.
The trend at the Wreath and Crest is part of a larger sales trend happening among domestics - with other models like the Dodge Dart and Ford Fusion doing well - and overall US car sales. Head over to Bloomberg for the big picture and role the ATS plays in it.