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    Thread: GM Flexes Alpha Platform Options

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      GM Flexes Alpha Platform Options

      Last month, we reported that the new rear-wheel-drive General Motors platform, Alpha, designed for the 2013 Cadillac 3 Series-fighter, also will underpin the 2014 CTS and 2015 Chevrolet Camaro. The platform is proving flexible enough to serve as the basis for expensive Cadillacs as big as the next CTS, which we expect to grow to about 195 inches long, plus a smaller Chevrolet and/or Buick sedan, as well as the next-generation Camaro.

      Now we’ve learned that the platform is being “protected” for a variety of engines, including four-cylinders, supercharged or turbocharged V-6s, and the small block V-8. By “protected,” we mean the bodies are designed to allow for proper fitting of the various engines, whether they are offered with all the engine choices or not. You don’t “close off” the design to make it impossible to add a different engine or transmission initially unplanned. While four-cylinder engines are smaller than sixes and eights, of course, the cars also must accommodate active engine mounts to account for less inherent refinement and smoothness in the fours.

      Turbocharged sixes along the lines of the 2.8-liter in the Cadillac SRX could be a future premium engine offering for the next-generation, Alpha-platform Camaro.Breathed-on V-6s need engine bay accommodation for the blowers or turbos, and for intercoolers. This makes it easy to protect for a small block -- overhead valves are more compact at the engine’s top than dual overhead cams with four valves per cylinder. Therefore, they fit more easily than the breathed-on sixes.

      The Alpha four-cylinder almost certainly will be the ’15 Chevrolet Camaro, which should be somewhat smaller and much lighter than the current model. A turbo- or supercharged V-6 could be the Camaro’s premium engine, though of course, a lightweight, Hyundai Genesis-size Z/28 with a small block would be killer.
      Source ::
      GM's Alpha Designed for I-4, V-6 and ... Auto News
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      Try walking into YOUR car rather than crawling. For me walking is always best ---GURU SHISHIR

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      With all the floorpans and performance needs of vehicles using the Alpha architecture, I'd bet they ignore FWD and build an AWD/RWD chassis.
      Try walking into YOUR car rather than crawling. For me walking is always best ---GURU SHISHIR

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