Autoblog

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GM is spreading the full-size 2-Mode hybrid wealth from its big SUVs to its trucks. While the last Silverado Hybrid's claim to fame was its ability to act as a worksite generator, the all-new 2009 version is designed to deliver markedly improved fuel economy. Powered by the same 332 hp/367 lb-ft 6.0L V8 hybrid drivetrain as the Tahoe, Yukon and Escalade hybrids, GM claims that the truck will see a 40% increase in city fuel economy and a 25% overall bump compared to its non-hybrid sibling, making it the most fuel-efficient full-size pickup on the market (EPA numbers are still TBD). It can run in all-electric mode up to 30 mph, even when towing (up to 6,100 lbs). Depending on the state of battery charge, all-electric operation can continue for up to one full mile. GM engineers also implemented a number of improvements to make driving quieter under all conditions, which is a.) nice for the occupants and b.) makes for a more seamless transition between electric-only and engine-on modes. In addition to the quiet tuning, the Silverado Hybrid receives aero tweaks in the form of a new front air dam and a standard tonneau cover for the bed. The most obvious tradeoff owners have to make is the loss of some potential in-cabin cargo space, as the battery pack resides under the back seat. That floorspace is normally unoccupied in non-hybrid Silverados and can be used to haul items when the seat bottom is flipped up and out of the way. Some of that utility is obviously lost in this application. Pricing hasn't been announced yet, but expect to pay a premium for the green tech when the truck arrives in showrooms during the latter half of 2008.

[Source: GM]

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Early details on the 2009 Cadillac Escalade Hybrid leaked onto the web yesterday morning, and you can read Damon's early rundown on the essentials here. Now that Cadillac has released the full info and tech specs, we can break it down pretty simply. The Cadillac Escalade Hybrid uses the exact same 2-Mode hybrid powertrain as both the Yukon and Tahoe hybrids. Unlike its platform cousins, however, the Escalade does not incorporate any weight-saving measures. It does incorporate Hybrid badges in the fender vents and "H" logos by the rear windows. We're assuming (and hoping) the giant "H Y B R I D" door decals are to make the display car stand out on the floor at the auto show down in Miami this week.

We talked to a Caddy rep who told us that the decision was made not to diminish the Escalade in any way, so the seats retain all their stuffing, the front end gets no aero tweaks, and the bodywork doesn't get any lightweight elements like the Chevy and GMC trucks. Now, according to GM, the use of the hybrid system increases fuel economy by at least 50% anyway. If you figure that the standard 6.2L Escalade is good for 9 or 10 real-world MPG combined, it should be good for at least 18 mpg or so on the highway. We doubt it'll match the 21/22 (2WD) and 20/20 (4WD) city/hwy EPA ratings of the Tahoe Hybrid simply because the 'Slade outweighs it by 110 pounds in 2WD form and 181 when equipped with 4WD.

That said, if the Escalade really can actually get mileage in the mid to upper-teens it's an impressive feat, no matter how you look at it. This is a 3-ton truck after all, and we've driven midsize crossovers that struggle to get that kind of fuel economy. Those interested in towing stuff can pull 6,000 lbs with the 2WD truck and 5,700 lbs with the 4WD variant. As for the target audience, it's basically Escalade shoppers willing to pony up an additional premium to use less gas or to simply flash some green cred via the Hybrid badges.

GM's full press release is included after the jump and the gallery contains 14 hi-res photos.

[Source: GM]