2007 Chevrolet Silverado 1500 Ltz Crew Cab Pickup 4-door 6.0l on 2040-cars

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Callaway debuts its new C7 Stingray at National Corvette Museum

Callaway showed off its first tuned version of the 2014 Corvette Stingray at the National Corvette Museum last week, giving the rampant enthusiasts of America's sports car a look at the roughly 620-horsepower, supercharged rocket.
Unlike the Corvette SC610 we showed you back in January, this Stingray packs a fair bit more oomph. Horsepower is only up ten ponies, but torque has jumped from 556 pound-feet to "at least" 600 pound-feet. Neither horsepower nor torque is official quite yet, although Callaway is expecting to know just what its creation can do once testing and validation is completed later this month.
The 6.2-liter, supercharged V8 now boasts a new, three-element intercooler, which Callaway claims only allowed the inlet air temperature to increase by ten degrees Fahrenheit during dyno runs. Previous designs saw a 35-degree-Fahrenheit jump. The exhaust system has also been fettled with, and now is even less restrictive.

Consumer Reports criticizes small turbo engines for misleading performance, fuel economy claims [w/video]

Consumer Reports has taken aim at at small-displacement, forced-induction engines, saying the powerplants don't manage to deliver on automaker fuel economy claims. Manufacturers have long held that smaller, turbocharged engines pack all power of their larger displacement cousins with significantly better fuel economy, but the research organization says that despite scoring high EPA economy numbers, the engines are no better than conventional drivetrains in both categories. Jake Fisher, director of automotive testing for Consumer Reports, says the forced induction options "are often slower and less fuel efficient than larger four and six-cylinder engines."
Specifically, CR calls out the new Ford Fusion equipped with the automaker's Ecoboost 1.6-liter four-cylinder engine. The institute's researchers found the engine, which is a $795 option over the base 2.5-liter four-cylinder, fails to match competitors in acceleration and served up 25 miles per gallon in testing, putting the sedan dead last among other midsize options.
The Chevrolet Cruze, Hyundai Sonata Turbo and Ford Escape 2.0T all got dinged for the same troubles, though Consumer Reports has found the turbo 2.0-liter four-cylinder in the BMW 328i does deliver on its promises. You can check out the full press release below. You can also read the full study on the Consumer Reports site, or scroll down for a short video recap.

GM profits threatened by glut of pickups

Automotive News reports that General Motors may slash production or ramp up discounts in order to deal with an oversupply of pickup trucks. GM currently has more than double the standard supply of pickups, and the vehicles are threatening to dampen the automaker's profits for 2013. Typically, automakers try to sustain a 60- to 75-day supply of vehicles, but GM is currently loaded with a 139-day supply, as of last month. At the end of November, the automaker was sitting on 245,853 units.
The manufacturer says that it will adjust production accordingly before laying any incentives on the profitable pickups. Even so, there's some concern that the inventory swell could hurt the roll-out of the next-generation Chevrolet Silverado and GMC Sierra. GM actually began slowly stepping back production in August, but it's clear the company will take further action as it heads toward the end of the year and into the next. Analysts predict the automaker could reduce pickup manufacturing by nearly half in the first quarter of 2013.
That still may not be enough to keep GM from laying extra cash on the Silverado and GMC Sierra. While the company's incentive spending was down in November compared to the same month in 2011, both the Ram 1500 and Ford F-150 saw double-digit percentage increases in sales last month while the Silverado and Sierra numbers slid compared to a year prior. Incentive spending could help move more trucks and add some balance to the GM inventory surge.