Autoblog

Lutz unveiles the Cadillac Sixteen concept at NAIAS 2003 in Detroit

It's official. It's been confirmed: Cadillac is preparing a new V12 flagship. That's straight from the mouth of our favorite man in the business, Bob Lutz. On a recent trip across the pond, GM's venerated product guru confirmed in an interview to the British car magazine AutoWeek that they are indeed working on a twelve-cylinder engine, slated to power a new range-topping, import-beating "Cadillac of Cadillacs," a super-luxury-sedan to rival the likes of the Mercedes S-Class and Lexus LS in the grandest of American style.

The new powerplant is being fabricated from two of GM's 3.6-liter 60-degree V6 engines mounted on a common crankshaft. Far from relying solely on cylinder count, sources speculate the engine will also benefit from such features as direct injection and cylinder deactivation, resulting in a 7.2-liter V12 with somewhere in the neighborhood of 600 horsepower and 540 lb-ft of torque.

And just where is GM testing such a behemoth of an engine? In Australia, of course! As has become de rigeur for American automakers of late, GM is relying on its Australian subsidiary to run the development work on the new flagship engine. Holden is reported to have already begun testing mules, based on a Commodore with a stretched-out engine bay, at its Lang Lang test center near Melbourne. Although the Zeta-based Commodore, (a.k.a. the upcoming Pontiac G8) is being used strictly as a test bed for the time being, it could end up providing the underpinnings for the Cadillac megasedan when the time comes.

Lutz has been pushing for a top-tier Cadillac for years now, and the impetus for its development has apparently come from the feedback received by the Cadillac Sixteen showcar debuted back in 2003. Although the showcase V16 engine was ruled out, apparently the V12 has gotten the green light for development. Shoot for the stars and land on the moon, eh Bob?

Related posts:

• Not so sweet Sixteen: GM says definitely no $100k+ sedan
• Cadillac shores up Ultra Luxury Sedan
• Lutz: Camaro could spawn big Caddy
• $100k+ Caddy a go, again?
  

[Source: Automotive News - subscription required]

One thing we dig about Audi is the mantle they've assumed as the pioneers in diesel power. Most specifically, making diesels that knock the socks off gasoline engines, and shattering conventional wisdom in the process. As if dominating endurance sports car racing wasn't enough, Audi announced they'd be competing with bio-diesel next year, as we reported earlier. Still not enough? Following the launch of the highly anticipated R8 supercar, Audi revealed they'd be shoehorning a diesel in there, too. Still not enough? The latest reports indicate that the diesel in question could very well be a V12, the same found in the Q7 sport-ute and the A8 luxury sedan. The six-liter unit pumps out that magic figure of 500 horsepower, and a stump-pullin', rip-roarin' 738 lb-ft of torque. Pending the arrival of the V10 derived from the R8's sister, the Lamborghini Gallardo, that would make the diesel the most powerful and quickest version of the R8 available, and a pioneer for diesel supercars.

It's far from confirmed that the V12 diesel will in the end be available in the R8. There are packaging issues to be dealt with, considering the V12 is significantly bigger than a V8 or V10 (no kidding), plus they'd have to fit the advanced filter system in there, too. But "senior board members" have revealed that Audi is hard at work on it, and if the hurdles can be jumped, we could see the R8 diesel on the road by 2009.

[Source: Motor Trend via German Car Blog]

Mazda's new micro-site for the MX-5 hard-top convertible is a load of fun, placing its coupe-cabrio in a variety of ridiculous situations to demonstrate the *ahem* life-saving capabilities of what Mazda claims is "the world's fastest retractable hardtop".

Visitors to the site can create their own video, starring the MX-5, set in a variety of genres and placed in some off-the-wall scenarios with everything from ninjas and great white sharks to zombies and cowboys. It's direct-your-own B-movie fun for gearheads. (Of course they also give you the opportunity to find out more about the car the site and the movies showcase.)

Follow the jump to check out a few sample trailers and see how a retractable hard-top can save you from a variety of dangers you may or may not find yourself in.

[Source: Mazda]