2001 Gmc Savana 3500 Base Cutaway Van 2-door 5.7l on 2040-cars

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GM tinkering with Silverado, Sierra model mix amidst strong early sales

Variety, as they say, is the spice of life. That's a lesson that is currently being taught to General Motors, because despite a strong showing from its 2014 Chevrolet Silverado and GMC Sierra, the General's pickup sales still can't best those of cross-town rival Ford.
With 59,163 trucks moved, GM fell just over 1,000 units short of toppling Ford, and one of the main reasons for that, according to GM's chief sales analyst, was due to a lack of variety in the engines and body styles available on dealer lots. "We are still over-weighted toward crew-cab V8 trucks. Our light-duty mix will moderate over time as our launch progresses," said Kurt McNeil.
Loading dealers with the popular combination of the 5.3-liter V8 and the four-door, Crew Cab body style was intentional during the truck's launch, but as supplies of leftover 2013 models, which are being sold at heavy incentives, are beginning to wane, both budget-conscious and high-dollar buyers are looking elsewhere instead of at the volume model pickups.

GM to sell rebranded Peugeot vans in US?

According to a report by France's La Tribune cited by Reuters, General Motors and Peugeot are discussing the possibility of selling PSA Peugeot-Citroën commercial vans in the US through The General's dealership network. While specific models and what brand they may sell under stateside are not immediately clear, the move isn't entirely out of the blue, particularly since GM owns seven percent of the French automaker.
Peugeot and GM already have a joint-venture agreement to ease costs associated with vehicle development and procuring parts, and while the progress of the arrangement has been inhibited some by Europe's difficult economy, the two automakers are looking to expand the relationship. With sales in the dumpster, Peugeot's long-term prospects have looked particularly shaky as of late, and GM could use a modern commercial van lineup to better compete with North America's suddenly modern and Euro-fied competition. Mercedes-Benz kicked off the high-roof trend with its Sprinter, and for 2014, Ford is following with its Transit van (joining its smaller Transit Connect sibling), while Chrysler is leveraging its relationship with Fiat to rebrand the Ducato range of vans as Ram Promaster models.
Peugeot already has a full line of commercial van solutions in its stable, from its compact Partner and Bipper models to the larger Expert and Boxer models, which are available in a variety of cargo and people-carrying configurations.

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).