Alpha Platform May Carry Similar Weight Issues As Sigma, Zeta
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Remember when Opel CEO Karl-Friedrich Stracke told the world that Cadillac will be better than BMW in unsprung mass? Well it turns out that might not happen after all with the latest developments regarding the upcoming Alpha platform — GM’s rear-wheel-drive based architecture that will underpin the upcoming Cadillac ATS, next generation CTS , Chevrolet Camaro, and possibly others.
What was at one point a derivative of the stillborn Kappa II platform, the Alpha platform has skewed far from its original purpose as a lightweight RWD chassis that was only meant for four-cylinder engines to become something more of a multi-role platform capable of cradling four, six and even eight cylinder powerplants, all wheel drive, and the ability to stretch to a full-sized length. Such upgrades put on extra weight for the platform, as well as make it more expensive to develop. Speculation is that as much as 500 pounds have been added to the platform, and that upcoming Alpha-based products such as the ATS could tip the scales at a porcine 4,000 pounds. To compare, a BMW 328i weighs in at 3,362 pounds.
As much as we are advocates here for the increased use of certain platforms, it seems GM is shooting itself in the foot in this case. But we won’t know for sure if the project is a bust until we drive the Cadillac ATS, which is still a ways off.
Source: LeftLane
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Bring back Bob Lutz, I say.
Great Idea, I like it!
Try Aluminium and a price hike, BMW are built for people with diserning taste and disposable income, so sould be Cadillacs, The Camaro should be 1986 Corolla GTS small, realmen be dammed, real engineers will find a way to shoehorn an LSX into the topline model.
I can tell you this story is not true, there liars, don’t worry the car will not weight 5000 pounds, and Gm is not having problems with the suspenion. This is just internet talk.
Hope so! I have much faith in GM engineering. And if BMW (and to a certain extent Mercedes) can base their entire lineup on a single flexible architecture, there is no reason why GM can’t do the same and at least be at parity when it comes to weight and features…
I was just thinking the same thing how does BMW pull it off? Do they really use one platform for the 3 & 5 & 7 series and a modified version for the suvs.
Hey, Alex! remember the Wordless Wednesday of May 11, 2011, the image I asked you about? Well, that was the Cadillac ATS. Look at the rear door of the ATS in the image above and look at the rear door in the image included on the May 11, 2011 post.http://gmauthority.com/blog/category/gma-special/wordless-wednesdays/page/2/
Sorry, not that link this link http://gmauthority.com/blog/2011/05/wordless-wednesdays-whats-this/
P.S. The same wheels on the image above are similar to the image on the WW page,just “chromed”