• Mar 23, 2011
Cadillac CTS-V Coupe Race Car comes to life – Click above to watch the videos after the jump

Cadillac is pretty excited to head back to the race track. It's no simple task, however, to go from luxury sports coupe to competitive racer in a short amount of time. Thus, the automaker is spending plenty of time making sure its got the CTS-V Coupe race car completely dialed in before heading off to compete in various SCCA events.

Cadillac is documenting this return to racing with a series of YouTube episodes titled Refueled: Return of the CTS-V. We have the trailer and episodes one through three waiting for you after the jump, showing the race cars' origins, the build process and the Cadillac race team testing out on the track.

[Source: YouTube via 0-60mag.com]
Refueled: Return of the CTS-V Trailer


Refueled: Return of the CTS-V Episode 1: Origins


Refueled: Return of the CTS-V Episode 2: The Build


Refueled: Return of the CTS-V Episode 3: The Test


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
  • 36 Comments
      • 3 Years Ago
      Thanks AB, and good luck to Cadillac.
      • 3 Years Ago
      So you're telling me that they took this car straight from the factory and out came this? Cause I didn't realize the factory cars have a tube chassis.
        • 3 Years Ago
        Elmo:
        The suspension is completely different. The CTS-V has the magnetorheological suspension and this doesn't.

        To be honest, this car is almost as much a regular CTS as a CTS-V.
        • 3 Years Ago
        This DOESN'T have a tubed chassis. It's a production frame and is heavily based on the production CTS-V. The only thing not related to the CTS-V is the 5.5L LS7 from the C6.R GT2s.
      • 3 Years Ago
      I love this car! They are so sweet. I can't wait to see it run around Belle Island in 2012.
      • 3 Years Ago
      That's an AWESOME video. Big "ups" to GM for getting back into racing and showing the world what they can do. American muscle + luxury = World domination!

      However, one caveat: Is this technology going to trickle down to my and my friends' Caddy's? Will we get to bingo even faster...before the cool-colored daubers are sold out? Will the suspension feel like we're on rails when heading for 3PM dinner service at "The Old Country Buffet"? Will I be able to shave a few minutes off my monthly commute to the proctologist? Come on Caddy, there's a group of us enthusiasts sitting around the Del Boca Vista Phase III rec center waiting on answers!
        • 3 Years Ago
        When i read "Del Boca Vista Phase III rec center" i literally laughed out load. Well played.
      • 3 Years Ago
      whoever made these videos was a fan of need for speed high stakes. the soundtrack is lifted straight from the game. good to see the fans are still around.
      • 3 Years Ago
      I wish the production car took more design cues from the race car, namely the rear end.
        • 3 Years Ago
        I know what you mean. Big butt. Ugly.
      • 3 Years Ago
      @Spin Cycle, novel incoming...

      The "unibody" parts on that car could be completely removed, and the car could support itself completely on the cage structure alone. Because it is the sole load bearing structure for the entire suspension system and chassis. What, if any, structural reinforcement the unibody ads is a byproduct of its attachment to the roll structure, and acting as a gusset, and not as a result of it being directly loaded by the suspension. This is clearly evident in Episode 2 at the :29 second mark, where you can clearly see the A pillar structure of the cage, being welded to the upper cross bar, and the tie in points for the lateral support beam at the fire wall, and the dash support cross beam. Note that there is NO UNIBODY structure visible in this shot. The tube frame/rollcage is built first, and then the panels from the unibody are sandwiched around the roll cage, and bonded to it to form the "chassis". This is done to meet the regulations for what parts of the car must be "original". In most all cases the original unibody panels are used only as a skin, or template. And that skin is applied in areas where it states the "stock location" must be used. However, only the original factory locations at the point of pick up are needed, how they are reinforced, or manipulated beyond that is a grey area.
      For example, the front "frame rails" are tubular, the inside trim of them uses a unibody skin to locate the stock engine and transmission mounting points in the chassis, to locate what the rules allow for moving the drivetrain lower and further back. The front fenders are completely supported by the rollcage structure, and the upper suspension mounts are custom built into the cage. The fenders use a small piece of tin to connect it to the fire wall, again for regulatory compliance to keep it "part of the unibody". Same with the firewall, it is a flat piece of tin, connected to the outter skin applied to the roll cage to "tie it to the unibody". It also serves a secondary purpose of strengthening the forward box in the roll cage by reducing twisting flex at the front. You can clearly see this arrangement in Episode 2, at the 1:00 minute mark. Where the fire wall is absent, and the only unibody sheet metal is a thin, non structural, inner skin of the original unibody, completely supported by the A-Pillar of the roll cage,used to connect the front fender structure, and the eventual fire wall structure to meet regulatory compliance. You can see the entire front tubular structure and how its load bearing geometry works, and how the lower window support is skinned into it at 1:52 on Episode 2.
      The rear unibody internal center section of the car is the only area where any of the original unibody structure is actually kept intact. Mainly because it is the lightest way to put that much bulk at the back of the car and maintain the stock shape. You can notice that the original unibody rails run up, and are cut off before the end of the fender well, where they would usually continue to the stock rear bumper mounting locations, but instead pickup the rear wing struts through the trunk, which ties them neatly back into the rear suspension pickup that is supported entirely by the roll structure real triangles. You can clearly see this at :17 in Episode 2. Of note in this shot is also that there is no floor pan, but that the lower box section of the door sill is connected directly to the cage. You can clearly see where the inner skin of the B pillar of the unibody is connected to and supported almost entirely by the cage structure directly behind it, and resting on the lower boxed sill, tasked purely with holding up the roof. The roof then ties back to the rear deck brace (below the rear window) of the stock unibody structure, where it sets directly on the boxed section of the roll cage at the rear suspension pick up point, and forward down the A pillar to the inner skin of the fender well. The fact that these parts are connected, is what classifies it as a "unibody" under the regulations, and because they are dimensionally in the same location as the stock car...not because it is still a structural component. Which it most certainly isnt being only a single layer skin.

      I and VERY aware of how Group-A touring cars are built. And there are alot of tricks to meet regulatory compliance. But to call a pure Group-A, or Super 2000, or a WRcar a "production based" chassis is just ludicrous. The whole of the chassis structure is built around the roll cage, not the unibody. The unibody only defines your boundary were you can work, not what you can do structurally.


      @Elmo, how many race cars have you built? And how many rules and regs books have you poured over to do it?

      Yeah...didnt think so. So shut up.
        • 3 Years Ago
        @Buck-O

        SNAP!

        You win!

        :)
        • 3 Years Ago
        @Buck-O: Fantastic post even if I didn't understand it all. But the bottom line is that the CTS-Vs Cadillac has built for racing been changed so much, structure wise, etc. to the point they don't compare to the production model. Is this correct?
        • 3 Years Ago
        AB:
        You ate my multi-paragraph response to this with your filter. Could you please find your way to digging it out and posting it?
        • 3 Years Ago
        Nice to see there actually ARE some truly knowledgeable people on this forum from time to time. Great post !
        • 3 Years Ago
        @Rick, essentially, yes, there is no real direct comparison, unfortunately. Like i said, the stock chassis pretty much only dictates what your working parameters are. Your wheel base, your width, your engine placement, etc. So in that sense, if the chassis is not an ideal layout and geometry in its base structure, then it will be hard to turn it into a competent race car. So some of what they say about the stock chassis is true. But in terms of the suspension geometry, and type, and body stresses and loads, none of it relates back to the production car, because that is all completely different, and because so few parts on the race car were pulled out of a GM OEM parts bin, with the exception of the ones needed for regulatory compliance.
      • 3 Years Ago
      Watch Episode 1 from 1:55 and tell me thats not a tube frame car.

      While it may still have the central unibody intact with the roof and front and rear bulkheads, they are doing absolutely nothing structurally for the car, and are simply just hanging off of the cage. The entire weight of the car, and the loading of the suspension is on the "rollcage". The car is essentially a silhouette racer.
        • 3 Years Ago
        Again, we have an idiot.

        The whole car is production-based. SCCA World Challenge regulates all their cars to be production-based with heavily modified production chassis. Watch ep. 2 at .43 seconds.
        • 3 Years Ago
        You can call that a tube frame racer, if you don't know what a tube-framed race car is.

        A real tube-framed car completely lacks a unibody. This is a unibody with reinforcement. The weight of the car and the loading of the suspension on this are carried to the same body points as a non-reinforced CTS. How you can say the unibody isn't doing anything structural for the car when you see the unreinforced unibody (body-in-white) sitting on jackstands, clearly supporting its own weight I don't know.

        You're right that the whole front end of the car (ahead of the suspension mount points) is cut off and replaced with a tube structure. The same with the rear. This is because repairing a unibody is much more difficult, so SCCA lets World Challenge cars replace the "smashable" portions of the car with tubes so they can be fixed after a crash.

        This is not at all a silhouette racer.

        Look at 1:12-1:16 and 3:14 in episode 1. You can see how much of the body is cut off and replaced with tubes. At 3:14 in particular you can see the entire trimmed body in white side-by-side with one which has the front tubes welded on. You can see the original suspension attach points are still there.

        This is how cars are made at this level. If you want an even more stock car, look at the lower classes in World Challenge. Or look at the Grand-Am Continental series. Some of those cars in the ST class in that series actually are plated and driven to and from the race!

        The level of prep on these World Challenge GT cars is similar to a touring car in many series (and I don't mean DTM) or a WRC car.
      • 3 Years Ago
      correct me if i am wrong but isn't that intro electronic music from the Club Aria in Mass Effect 2???
      • 3 Years Ago
      i love the look of this car and its going to be a serious contender in SCCA and as for the whole same as nascar thing???? hell i wish it was, nascar needs something like this and hopfully in 2013 it happens like ive been hearing.

      • 3 Years Ago
      they should have raced the MUCH better-looking wagon version of the car.
      jamesc2123
      • 3 Years Ago
      The caddy (and every other WC car) is not, repeat NOT, tube framed. It is a unibody with a roll cage for safety and rigidity. They are heavily modified from there, but what does that prove, no one said they were trying to race a bone stock car. If you want near-stock, just look down the World challenge class list to the GTS or TC cars, which race along with the GT cars.

      Link for description of each class:
      http://www.world-challenge.com/series.php?page=carfacts
    • Load More Comments