• 31
Common view of the 2010 Cadillac CTS-V Hennessey V700 – Click above for a high-res image gallery

We wouldn't blame you if you threw a skeptical eye on the 2010 Cadillac CTS-V Hennessey V700 power claims. After all, more than 700 horsepower at the crank is hefty chunk of grunt, even from a supercharged small block. Fortunately, John Hennessey has been kind enough to allow the kids at Inside Line to stick his four-door beastie on the rollers for all to see. How'd it do?

The big-bad Cadillac put down 636 horsepower and 656 lb-ft of torque. Run those figures through the time-tested 15-percent driveline loss, and Hennessey's claims of world-dominating horsepower seem pretty close to the mark. No wonder the breathed-on Caddy is so good at obliterating its tires. Click past the jump for a video of the fire-breathing action.



[Source: Inside Line]



I'm reporting this comment as:

Reported comments and users are reviewed by Autoblog staff 24 hours a day, seven days a week to determine whether they violate Community Guideline. Accounts are penalized for Community Guidelines violations and serious or repeated violations can lead to account termination.


    • 1 Second Ago
  • 31 Comments
      joe
      • 5 Years Ago
      Why700hp? Why not, who cares what it's in. Every time Hennessey, Lingenfelter, Heffner and all the others build something this powerful and package it in a loaded street car the performance guys benefit from the next step in tech. As time goes on they get "greener" also, not that that matters, most of these cars don't get use like most other drivers. The hot rod builders are putting 1000hp in all sorts of street cars. Modern technology is awesome!!!
      • 5 Years Ago
      Pretty dull looking engine considering the ridiculous amount of power. Still a fan, even though I agree with a previous poster that it's overkill. Hell, why not 1,000 hp then?
        • 5 Years Ago
        It looks like someone wedged their to-go box under the hood, soggy chicken fingers and all, and connected various hoses to it to make it look legit.
      • 5 Years Ago
      Man I would love to roll up to the board meeting in one of these bad boys :)
      • 5 Years Ago
      "The big-bad Cadillac put down 636 horsepower and 656 lb-ft of torque. Run those figures through the time-tested 15-percent driveline loss, and Hennessey's claims of world-dominating horsepower seem pretty close to the mark."

      Maybe my calculator is broke but 15% of 700 is 105, so my thinking is the numbers are way off, in Hennessey's favor too.
        • 5 Years Ago
        Yup. According to the dyno test, that engine is churning out 748 HP...

        I wonder how long the Caddy parts will withstand that kind of stress before essential bits start disintegrating.
        • 5 Years Ago
        I like how the author didn't catch that.
        • 5 Years Ago
        @ Chris O:
        It's within the normal safety margin the OEM's use for durability but my guess is this particular car might be pushing it a little. And Lord help the person who slaps some slicks on this puppy and goes racing!
      • 5 Years Ago
      Autoblog's new slogan:

      Crooks R' Us.
        • 5 Years Ago
        Have you ever personally lost any money to Hennessey?

        If you haven't, you should stop acting like a f@gg!
      • 5 Years Ago
      It may have 636whp but it is still a Cadillac and is still ugly as sin. I will stick to my modded (500whp) 06 E55!!!!!
      • 5 Years Ago
      That engine came from another customer's car.
      • 5 Years Ago
      Sea Urchin 2:34PM (3/30/2010)

      Explain to me again why someone would need a car that has 700 HP on the road.



      So It can shoot flames out of the exhaust on overrun. Check out 0:49.
      • 5 Years Ago
      It sounds ferocious.
      • 5 Years Ago
      Just lemme get a go in this beast one time...one time. Give me a long empty stretch of road too :)
      • 5 Years Ago
      Explain to me again why someone would need a car that has 700 HP on the road.
        • 5 Years Ago
        Yes I think most people realize Sea Urchin that 700 hp is only 300 less then the mighty Bugatti, but then again thats the point of this car to be crazy fun! Its like complaining that the BMW 335d isnt green enough. NEWS FLASH cars like this are suposed to have crazy amounts of horsepower!
        • 5 Years Ago
        Somebody's gotta fund the road infrastructure by paying speeding tickets.
        • 5 Years Ago
        "Why WOULDN'T someone need a car that has 700 HP on the road?"

        Fixed it for you.
        • 5 Years Ago
        Glock: that's probably because modern cars are wicked fast. I mean look at the new v6 pony cars.. they would easily blow by many 90's v8's. Geez, even i consider my 190hp car to be pretty quick.
        • 5 Years Ago
        Because horsepower is like money, you can never get enough
        • 5 Years Ago
        OK, let me put it this way....you guys do realize that 700 HP is 300 HP less than Bugatti Veyron.

        • 5 Years Ago
        I don't know, why did I drop an LS3 into a perfectly good G35 Coupe? Because I can.
        • 5 Years Ago
        It wasn't built for the road; it was built for Grand Turismo 5 and it's the sole reason the game is taking so long to come out. I'm just mystified why Hennessy wouldn't go with twin turbos to allow for different boost settings. There should be a way to give the tuning flexibility of turbocharging and still maintain some kind of warranty.
        • 5 Years Ago
        Just in case...

        P.S. I'm putting more than that down on a N/A LS motor.
        • 5 Years Ago
        @Clay Garland

        Because you're awesome.
      • 5 Years Ago
      I want to see one of these with an automatic. By the 1/4 mile times they got, it seems obvious that the car is capable of better times
    • Load More Comments