1985 Gmc C/k1500 High Sierra / Sierra Classic on 2040-cars

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2014 Chevrolet Silverado and GMC Sierra debut all-new designs, three new engines

General Motors has finally dropped the curtain on the 2014 Chevrolet Silverado and 2014 GMC Sierra. Both trucks have undergone substantial revisions with updated versions of the company's 4.3-liter V6, 5.3-liter V8 and 6.2-liter V8 engines. In a shot across the bows of both Ford and Chrysler, GM says it won't use a V6 engine adapted from passenger car applications. Instead, it developed the 4.3-liter engine based on its proven truck-duty architecture.
All three mills will boast direct injection fuel systems as well as a new cylinder head design. Combined with a revised piston, the new engines feature a smaller combustion chamber with a compression ratio of 11:1 or higher depending on the application. Cylinder deactivation and continuously variable valve timing are all part of the recipe, and each engine is paired with a six-speed automatic transmission with auto grade breaking. So far, no fuel economy or horsepower figures have been released, though GM says the new engines will best their predecessors in both areas.
Outside, the trucks feature a number of enhancements to reduce drag and wind noise, and GM claims both the Silverado and Sierra will offer buyers some of the quietest cabins in the class. Extended cab models now feature front-hinged rear doors to allow easier access to the back passenger area, and Crew Cab buyers can now select between a five-foot, eight-inch bed or a six-foot, six-inch bed. Buyers with a mind toward going off road will also rejoice in the return of the Z71 package, complete with Rancho shocks, front tow hooks and additional under-body protection.

IIHS: High numbers of drivers treat partially automated cars as fully self-driving

WASHINGTON — Drivers using advanced driver assistance systems like Tesla Autopilot or General Motors Super Cruise often treat their vehicles as fully self-driving despite warnings, a new study has found. The Insurance Institute for Highway Safety (IIHS), an industry funded group that prods automakers to make safer vehicles, said on Tuesday a survey found regular users of Super Cruise, Nissan/Infiniti ProPILOT Assist and Tesla Autopilot "said they were more likely to perform non-driving-related activities like eating or texting while using their partial automation systems than while driving unassisted." The IIHS study of 600 active users found 53% of Super Cruise, 42% of Autopilot and 12% of ProPILOT Assist owners "said that they were comfortable treating their vehicles as fully self-driving." About 40% of users of Autopilot and Super Cruise — two systems with lockout features for failing to pay attention — reported systems had at some point switched off while they were driving and would not reactivate. "The big-picture message here is that the early adopters of these systems still have a poor understanding of the technologyÂ’s limits," said IIHS President David Harkey. The study comes as the National Highway Traffic Safety Administration (NHTSA) is scrutinizing Autopilot crashes. Since 2016, the NHTSA has opened 37 special investigations involving 18 deaths in crashes involving Tesla vehicles and where systems like Autopilot were suspected of use. Tesla did not respond to requests for comment. Tesla says Autopilot does not make vehicles autonomous and is intended for use with a fully attentive driver who is prepared to take over. GM, which in August said owners could use Super Cruise on 400,000 miles (643,740 km) of North American roads and plans to offer Super Cruise on 22 models by the end of 2023, did not immediately comment. IIHS said advertisements for Super Cruise focus on hands-free capabilities while Autopilot evokes the name used in passenger airplanes and "implies TeslaÂ’s system is more capable than it really is." IIHS in contrast noted ProPILOT Assist "suggests that itÂ’s an assistance feature, rather than a replacement for the driver." NHTSA and automakers say none of the systems make vehicles autonomous. Nissan said its name "is clearly communicating ProPILOT Assist as a system to aid the driver, and it requires hands-on operation.

2018 GMC Sierra Denali 1500 Drivers' Notes | Chrome cowboy

No matter how much automakers want to charge for trucks, it seems there will be a market. Ford, Ram and GM all have trucks that can push well over $60,000, something that would sound unbelievable even 10 years ago. That brings us to the 2018 GMC Sierra Denali, GM's top dog in the pseudo-lux truck segment. It's packed with tons of goodies and features, but it's starting to feel a little long in the tooth. Still, GM trucks are some of the best selling vehicles in America, so it seems customers don't mind the age. Associate Editor Reese Counts: I've said it before, but I'm not a big truck guy. Give me a Colorado or Tacoma over any of the full-sized behemoths rolling off assembly lines today. Still, I do enjoy taking one home on occasion, especially one as comfortable and well appointed as this Sierra Denali. There's leather and wood and contrasted stitching throughout. The problem is that it's all a veneer over what's becoming an extremely dated truck, though a new one is on the horizon. There's one big thing that truly bothers me about this truck: no keyless entry or ignition. Don't get me wrong, I have no problem doing things the old-fashioned way, but when literally every other competitor at this price has keyless as standard equipment, the fact that GMC (and Chevy for that matter) still require you to pull out a fob and stick a key into an ignition is really glaring. It has to have something to do with the platform, as GM makes plenty of vehicles that don't require a key. One thing that doesn't feel dated is the ride and performance. This truck is equipped with GM's Magnetic Ride Control, and it works wonders for the Sierra's comfort. It would be even better if it wasn't wearing some gaudy 22-inch wheels, but it's still better than a lot of trucks out there. The powertrain, too, is a nice bright spot. The eight-speed automatic is smooth and never feels lost in the hunt for better fuel economy. The 6.2-liter V8 feels strong, and power comes on smooth and easy. Ford's EcoBoosts may win on fuel economy, but there's nothing like a big, burly V8. Senior Editor, Green, John Beltz Snyder: Despite the massive amounts of guilt I feel every time I put my foot to the accelerator, big trucks — something of which I used to steer well clear — are beginning to warm up on me. That being said, others have made more of an impression on me than this Sierra.