

Remember earlier in the year when Chevy quietly added the 36-mpg XFE model to its Cobalt lineup? XFE stands for "Xtra Fuel Economy" (should we tell them they spelled "Extra" wrong?) and means these vehicles have been equipped with some easy fuel-saving technologies to eek out as many miles per gallon as possible. GM announced today that the Cobalt XFE will be joined by XFE versions of the Chevy Silverado, GMC Sierra, Chevy Tahoe and GMC Yukon for the 2009 model year.
The General already offers hybrid versions of its full-size SUVs, which are also joined by hybrid versions of its half-ton trucks for 2009, but the XFE models will continue to be powered by a flex-fuel version of the company's 5.3L gasser V8. It produces 320 hp/340lb-ft in the Tahoe and Yukon, and 315 hp/338 lb-ft in the Tahoe and Yukon. All are rear-wheel-drive only and mated to GM's 6L80 six-speed auto with a fuel-saving 3.08 ratio rear axle. In order to maximize fuel economy, all four of these new XFE models get low rolling resistance tires, aluminum wheels, an aluminum spare wheel, aluminum lower control arms and a lowered suspension with revised tuning. In addition, the Silverado and Sierra also get a new front lower air dam and soft tonneau cover that improve their aerodynamics.
What does it all add up to? 1 mpg. All four standard vehicles were rated at 14 mpg city/20 mpg highway, while their XFE counterparts bump those numbers to 15 city/21 highway. The gains are certainly minimal and we're not sure yet what sort of price premium XFE models will demand, but we give GM credit for at least reacting to the current shift in consumer tastes so quickly. We would have preferred, however, that it had just made these fuel-saving changes standard equipment rather than a separate model.
Look quickly, and you'll miss the changes, but GM's got some subtle exterior tweaks in store for its Heavy Duty trucks in 2010. Development doesn't stop even though the practice of using a pickup truck as a commuter car is no longer popular, so GM is plugging away at a new Silverado to avoid being passed up by its competitors.
Competition aside, there's also the issue of federal regulations to comply with, so changes were necessary no matter what. Most noticeably, the bumper changes, gaining a strip of trim that extends across the top, doing away with the overemphasized corner look of the current cow catcher. Looking more closely at the bumper, the air intake in the middle appears to have grown in size. That opening feeds the transmission cooler, so the speculation is that the Allison transmission has picked up extra ratios. Of course, it could just be bigger to gain an edge on thermal management underhood, but we're going to jump on the bandwagon of being excited for more cogs spun by the heavily revised 6.6-liter Duramax diesel with urea injection. That'd be just the thing to tow the Alero.
GM's Oshawa Truck plant has been slated for closure in 2009, but GM has announced that the embattled plant will still build the Silverado Two-Mode hybrid beginning later this year. The move was well received by the CAW, which hasn't exactly been playing nice with the General since it got word of the plant's closure. The CAW threw up a blockade of GM's Canadian headquarters from June 4-15 in response to the General's announcement that it would close the facility. There has been some talk about perhaps switching the plant to car production, but GM has made no announcements and CEO Rick Wagoner didn't sound too optimistic about the plant's future when he announced the closing. At least the hybrid Silverado will help ensure that the plant has steady production for the near-term, but it'll likely have to be a lot more popular than the Tahoe hybrid if it's going to help Oshawa Truck stay open.



It was a big enough shock last May when ROUSH announced that it would begin making performance parts for a select few General Motors' vehicles. Long associated with Fords, in particular the Mustang and F-150, ROUSH initially began offering just its Power Programmers and cold air intakes for GM products.
Then a rendering surfaced that showed a fully tuned Silverado with a ROUSH body kit and wheel package. Though the company admitted it was researching such a truck, it didn't admit much else. Now it doesn't have to, as we have pictorial proof that ROUSH may soon branch out beyond vehicles branded with a blue oval to offering full performance packages, including the ROUSHcharger supercharger, for 1997-and-up Chevy Silverados.
The spy shots you see here show a ROUSH-modified Silverado that's virtually identical to the rendering that leaked out. Beyond the bright color, we can see a new front bumper and lower apron with a deep chin spoiler, large-diameter dual exhausts out back, larger wheels wrapped in low-profile rubber and a new hood with a power dome. That dome no doubt hides a supercharged V8, probably the 6.0L Vortec MAX V8 that normally produces 367 hp and 375-lb/ft of torque, but should hit 500 hp and 500-lb/ft with the addition of a ROUSHcharger. ROUSH and Chevy? We know, it sounds weird to us too, but based on these spy shots, it looks like a good time.
At some point in the past 20 years, it seems as though parents abruptly decided to switch from names like Michelle and Jimmy to names like Madison and Hunter. The naming trend obviously didn't sit well with one Texas couple, who decided to name their children after luxury car manufacturers. The Lone Star duet named their first child Lexus after the new father saw a Lexus driving by. The name Porsche was shot down for the first child, but when Craig and Sondra Harrington found out they were expecting twins, Ferdinand's namesake was back in the fold. To keep up with the German naming convention, the other child now dons the Audi name.
As it turns out, the Harringtons aren't even car nuts, but they may be a bit looney. Something tells us the twins had better be a couple of tough hombres, because they're likely going to have to get physical to keep kids from picking on them. Besides, Texas is truck country. Shouldn't they have gone with Silverado and Tundra? F-Series is probably a bit over the top, but Sierra could make a great girl's name.
Source: PistonHeads
