GM developing V12 for Cadillac

cadillaclogo.jpgGeneral Motors is developing a new V12 engine for Cadillac to be used in a new large luxury sedan to be built for the marque. The new Cadillac large luxury sedan will go against the likes of the Lexus LS, BMW 7-Series and the Mercedes Benz S-class.

The V12 powerplant is being built by joining two existing 3.6 litre V6 designs in tandem, making them share a single crankshaft. Thus, the new V12 will share the 3.6 litre V6’s technologies such as cylinder shut-off during low load for better fuel economy as well as direct injection. The new 7.2 litre V12 is expected to make over 600 horsepower and 732Nm of torque.

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Paul Tan

After dabbling for years in the IT industry, Paul Tan initially began this site as a general blog covering various topics of personal interest. With an increasing number of readers paying rapt attention to the motoring stories, one thing led to another and the rest, as they say, is history.

 

Comments

  • jazz1011 (Member) on Mar 22, 2007 at 5:24 pm

    I can't wait to see the V12 powerplant.

    Joining two 3.6 liter V6s together is a sight to behold.

    Now all that's left, is to see how the new car looks like.

    Would it be bigger than the CTS?

    Or would it be the combination of the CTS and Seville platforms?

    Let's wait and see.

    Cheers!

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  • AmSouth (Member) on Mar 22, 2007 at 5:40 pm

    May God Bless Cadillac

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  • 4G63T DSM (Member) on Mar 22, 2007 at 6:18 pm

    Its nothing new, manufacturers have been joining engines together with a common crankshaft either end to end or side by side (VW group "W" engines)

    New engines are developed to be "modular", meaning the same family shares the same components and manufacturing adding cost effectiveness in manufacturing 4, 6 and 8 cyc families.

    It will probably be in something bigger than the CTS and STS. The CTS is small in comparison, its already full of engine with the Corvette LS6 stuffed into it. This will be a new upmarket engine for a new car. The existing Northstar V8 is already too much engine for the STS/DTS's front wheels. New car will have to be RWD/AWD.

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  • longjaafar (Member) on Mar 22, 2007 at 6:43 pm

    It shows that GM is desperate for something as "revolutionary" as a W12. The Phaeton had it so long ago and it did make much impact, because buyers will still compare it with highly developed V8's that are powering most of the high end saloons, not to mention the supercar class.

    What the Americans should focus is on handling and build quality. If the Japanese and Europeans can do it, why not them?

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  • siacw (Member) on Mar 22, 2007 at 7:05 pm

    7.2 liter, are they making truck?

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  • layman (Member) on Mar 22, 2007 at 8:41 pm

    Big capacity engine will spoil our environment.

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  • transformer (Member) on Mar 22, 2007 at 10:18 pm

    VW had done that all the while…

    joint 2units of V4 becomes W8, VW Passat has it

    joint 2units of V6 become W12, on VW Phaeton

    joint 2units of V8 become W16 on Buggati Veyron 8.0L 1001bhp 407Km/h car (Buggati a VW company)

    maybe more other makes would opt to such design soon….

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  • nmh (Member) on Mar 22, 2007 at 10:18 pm

    Hope it is an efficient american v12. Ask european for assistance…its ok. Then clarkson will love it

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  • cbljkkj (Member) on Mar 23, 2007 at 12:34 am

    If i'm not entirely mistaken, this Cadillac engine concept has been floating around for quite some time in the form of the Cadillac Sixteen. I think there was only 1 made a few years back as featured by Top Gear's James May a few seasons ago.

    Excerpt from the Leftlane News article "The engine will have 7.2 liters of displacement with 600 horsepower and 540 pound-feet of torque"

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