Tag Archives: Sigma

Re: Next-Gen CTS to Join #Cadillac ATS on Alpha RWD platform – @motor_trend

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Motor Trend has an interesting Cadillac ATS article up: Next-Gen Camaro, CTS to Join Small Cadillac ATS on New Rear-Drive Platform – Wide Open Throttle – Motor Trend Magazine

Fun Cadillac ATS Details from the article:

  1. ATS is in fact on a new RWD Alpha platform
  2. ATS is due in calendar year 2014 (as a 2015 model?)
  3. Next Generation CTS will also move to the Alpha platform and grow 6 inches in 2013 as a 2014 model
  4. CTS Coupe and CTS Wagon will be discontinued in favor of ATS Coupe and ATS Wagon
  5. Platform will be lighter than the current Cadillac CTS Sigma platform
  6. Next generation Chevrolet Camaro will share the same Alpha platform
  7. Supercharged or turbocharged version of the gas direct-injection 3.6-liter V-6 should be available (!)
  8. Cars will be more fuel efficient than the current models

See our other Cadillac ATS coverage

All good news except for the 2014 arrival date; I was hoping for 2012 as a 2013 model.  Love that Cadillac recognizes they need to get some weight out, and bring a bit more power to the sport sedan mix.  Putting the CTS on Alpha makes a lot of sense if it is flexible enough to support the range of wheelbases needed.

Cadillac Takes Charge and Accelerates Alpha Development

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GMInsideNews.com is reporting that Cadillac is accelerating development of the alpha architecture

In another rumored move, Global Product Board has taken development of Alpha from GM Holden and has given it to the GM North America and GM Europe operations. This was done to placate Cadillac, who does not want to compromise on Alpha’s development for their planned BLS-replacement. What Cadillac hopes to achieve is to get a flexible enough platform to support 4, 6, or 8 cylinder engines, as was deemed necessary by the Wreath & Crest brand.

This may also hint that a premium version of the Alpha platform will eventually supplant the Sigma platform that current underpins the Cadillac CTS when the vehicle is replaced in the 2012-2014 time frame. Originally, GM had intended to further develop a “premium version” of the Zeta architecture that would unify both Zeta and the much more expensive Sigma platform. These plans, apparently, have been shelved in favor of a wider utilization of the lighter Alpha platform.

I am a huge proponent of lighter cars.  It was expected that the new smaller-than-a-CTS model would be lighter by virtue of being smaller.

The idea that a ‘stretched’ alpha might replace the current Sigma II architecture of the Cadillac CTS is very interesting, and would be a way for the entire line to get on a diet, so to speak.  Very good news.

Of course, a nice V8 engine in a lighter Cadillac Alpha platform would be fun, if less economical.  But certainly a V-Series edition of the upcoming Alpha model would be welcome.