• Jan 7, 2008
It all changed on December 19, according to Cadillac General Manager Jim Taylor. That's when President Bush signed the bill that made increased CAFE standards a reality. The revised fuel economy requirements mean that the days of widespread V8 power at Cadillac are all but over. This all dovetails neatly with GM's announcement that the DOHC "Ultra V8," a replacement for the aging Northstar, has been canceled. The Northstar will go out of production permanently in 2010.

Instead of the traditional V8, look for expanded use of the powerful direct-injected 3.6L V6 currently available in the CTS and STS. A caddy without a V8 might seem odd, but we thought the same thing when Lincoln announced the MKS wouldn't get eight cylinders underhood, either. That appears to be working out fine, and we're inclined to believe Cadillac will also have no problem making the transition. The DI V6 makes more than 300 horsepower in its current form anyway, and the General's pushrod V8s will still be around to service the Escalade and low-volume niche vehicles like the V-Series cars if needed. Automotive News says that the 2.9L turbodiesel in development for the European CTS could also be used Stateside when the time comes. Sounds good to us. A refined, punchy diesel and the excellent DI V6 would do well carrying Caddy's mainstream lineup into the post-V8 era, particularly when little to no power will be sacrificed along the way.

[Source: Automotive News - Sub. Req.]


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  • 64 Comments
      Carlos
      • 7 Years Ago
      Its sad to see the V8 go the way of the dinosaur in a mass production sort of way. Atleast we're given twin turbo V6s to make up for it. Maybe one day we can have small displacement twin turbo V8s that will get in excess of 30 mph, just maybe. Until then I'll shed a tear...=(
        • 7 Years Ago
        @Carlos
        30 mph huh?

        It's 2008 not 1808 man.

        J/K

      • 7 Years Ago
      What part of V10 and V12 does Cadillac not understand? Gosh, I could've had an AUDI!

      If anything, the schmucks should have gone to a 3.0 liter V12.

      Time for the greenies to put a displacement tax on engines.
      • 7 Years Ago
      I can't help but think that any other company would've used this opportunity to make a better, more efficient V8 than ever before. It's not like CAFE prohibits them, it just means they can't be your volume sellers. Build more efficient Chevies and it's all good!

      I'm going to laugh when Cadillac is the only luxury brand alongside Acura without a V8 available.
      • 7 Years Ago
      I don't care what anyone says about the power being equal, it just won't be the same. I fear for my children, and what kind of twisted socialist world they will be growing up in...
        • 7 Years Ago
        Yeah, I think it was Karl Marx himself who condemned V8 power and extolled the virtues of 4 and 6 cylinder engines. Also, why can't I buy a 40% efficient gas furnace instead of the socialistic 95% one I have now?

        Truth is, it was years of unbridled capitalism that led to high energy demand, low supplies and the conservation efforts belatedly underway now.
      • 7 Years Ago
      This article is complete nonsense.

      "off the menu"?

      CAFE is an average. V8s will always be available, they just won't necessarily be the mainstream engine. And if the standard engine makes 250HP in the low-end vehicles and 300HP in larger ones, I don't see how this is a problem.

      I very much wanted an AWD wagon Caddy, instead they offered the SRX which gets horrible gas mileage. I am glad that now perhaps the company can concentrate on making some Caddies that are appealing but get reasonable mpg.
      • 7 Years Ago
      Cadillac needs to have a V8 if they truly want to compete with BMW,MECEDES, LEXUS and cars of that type. The V8 needs to be the most high tech and sophsticated in the industry. GENERAL MOTORS have six different car division in america. To prevent tons of over lapping it needs to move Cadillac way up market.It would be very difficult if not impossible to do that without a class leading overhead cam V8 and maby even a v12.
      • 7 Years Ago
      Diesel is the way like I mentioned in the post about the N* replacement being cancelled. It is too bad, but that is what you get when a government interferes with the market. The customer gets screwed without knowing why. I am sure the Euro manufacturers are ready to send over their diesel engines as well and start dropping their gas V8's and gas 10cyl.

      This is just the start folks!
        • 7 Years Ago
        Taxing it at the pump is a direct way to pay for the war and limit its use as people will not want to pay for more expensive gas. Poeple with lots of money can still pay for whatever they want to drive and have the option of a V8. They will pay more for it and the government will collect more tax from those people who choose to do so. Less people on whole buy luxury cars so it all makes sense, they pay to play. The government does not make sense with CAFE. I agree that oil is a national security issue, but the oil companies bought the US government which is why such a simple plan will not work. The tail should not wag the dog, but in this case it is.
      • 7 Years Ago
      Dumb move.

      Having driven the 3.6L DI in the CTS numerous times I can attest it does not provide great motivation for that car nor is it really frugal. You have to cane this engine to get performance out of it and it doesn't sound good under stress.

      I had a Cadillac with a Northstar V8 and it was a great engine and averaged 22MPG and nearly 30MPG on the open road.

      This move will only serve to make GM's luxury brand look bad while German automakers continue to produce their V8s. Audi, BMW and Mercedes certainly won't be dropping their V8s, neither will Lexus.

      Where does that leave Cadillac?
      • 7 Years Ago
      @ andrew
      i have used owned four cylinders and one will never sound quiet as a v8 in the cabin during hard acceleration.

      many six cylinders are quiet enough for the average driver but some of us take our cars on the track. i have a magnum rt. i dont think i want anything less than a v8 except its going to be a spare car. while v6 are great, some people are hardcore car enthusiast and some of those people like v8s.
      btw i was not referring to exaust sound. i was referring to cabin quietness.
        • 7 Years Ago
        Andrew,

        You're the 350Z owner here, but every review of the Z seems to devote a paragraph or two to how the cabin booms and the engine sounds like a coffee grinder or a vacuum cleaner. If you're basing your standards of quietness on the Z, then a Dodge Viper's pretty damn quiet at full throttle, too.

        Oh, and if more cylinders means less cabin noise, then the Viper should be as quieter than a Lexus LS.
        • 7 Years Ago
        *Viper should be quieter than a Lexus LS.
        • 7 Years Ago
        while u upping ur v6 with a turbo, my v8 is working with just a few bolt on parts.
        when i talked about enthusiasts, notice i said SOME not all like v8s. read b4 u speak. some like 8s and some like 6s. i think 6s are great. my preference are 8s so i'm sad to see them go away and i would buy them until they are extinct. after extinction, i'll buy v8 trucks. bite me if u dont like that
        • 7 Years Ago
        1337,

        Dodge would have failed somewhere if the words Serene or quiet could be used to describe Viper.
        • 7 Years Ago
        1337: After boosting the car, it quieted down quite a bit. Turbos actually buffer the exhaust note. Though, most people with turbos also like to remove cats/resonators/mufflers. I added an extra resonator.

        I agree though, the exhaust doesn't get quieter with more cylinders.
        • 7 Years Ago
        Andrew, I've seen Buick GNX's lay down more than 1000hp, what's the point? I can buy a V8 that lays down 700hp naturally aspirated. Where's your six now?
        • 7 Years Ago
        I track my inline 6 BMW, and used to track my V6 Nissan 350z with a twin turbo. I'd say both have been fairly quiet, even in high rpms. Displacement has nothing to do with enthusiasm. I've seen a few Supras lay down 1000+ hp dyno runs on 6 cylinders.
      • 7 Years Ago
      When it comes to cars and chicks, nothing feels as good as a big bottom end.

      V8s don't necessarily need high HP to be an effective engine in a luxury car. Small High HP engines the needs to revved to the heavens are not the perfect match for Luxury autos.

      Big effortless power at the bottom is the way to go.
      ross
      • 7 Years Ago
      I'm fine with that as long as they can turbo a V6 or I6 to sound like a C63. That's what an engine should sound like.
      • 7 Years Ago
      Remember the leaked union contract details that revealed a number of details on upcoming GM programs?

      One of them is that the next-generation of GM V8's would include a DOHC variant. My suspicion is this is the real replacement for the Northstar/UltraV8 and that it will be available, just not in the numbers that V8's are now.

      GenV promises some really significant improvements in power and economy - a far bigger jump than GenIII to GenIV...

      http://www.futureoftheunion.com/docs/delphi/Ex1toproposedorder149pages.pdf

      http://www.pickuptruck.com/html/news/gm/uaw/futureunionuaw.html
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