Crew Cab 4x4 on 2040-cars

Auto blog

3 Quick Takes on the new Hummer EV

The 2022 GMC Hummer EV truck debuted Tuesday with 1,000 horsepower and up to 350 miles of range. It marks the return of the Hummer name after a decade-long absence and is the most ambitious electric vehicle General Motors has attempted. Here are three quick takes. This is how major vehicles will be revealed going forward The unveiling during Game 1 of the World Series on Fox and during The Voice on NBC could only have been bigger if done during the Super Bowl. A two-network debut complete with LeBron James providing voiceover for the commercial. On Fox, World Series play-play man Joe Buck neatly set up the spot and told millions of viewers that the order bank was now open. Then the Hummer debuted in what looked like a cut from the next Transformers movie. OK, this is not how every major car will be revealed, but the direct-to-consumer, as-many-eyeballs-as-possible, made-for-TV (or social media) event will be a key strategy going forward. In the last few months, the Detroit, Los Angeles and New York auto shows have all played leapfrog with dates, confusing many observers. The pandemic has obviously exacerbated the decline of auto shows, but if you’re an automaker, why share the spotlight in a convention hall? Most car reveals wonÂ’t be network TV spectacles, like the Hummer, but streaming services and other platforms will make a lot more sense than traditional means as companies compete for new buyers. This is how the Tesla Cybertruck should have looked Most would say the Hummer is pretty cool looking. The headlights, the grille, the blocky fenders and huge wheels — yeah, this looks straight out of central casting. ItÂ’s what you expected the reborn Hummer to look like, nominally now in the service of the GMC brand. Tesla made the Cybertruck a bit too crazy. Sure, itÂ’s attention-getting. But look at the Tesla. No one can objectively say the Cybertruck is aesthetically pleasing, from the shape to the features. ItÂ’s out-of-step with the graceful Model S and Model 3 sedans. The Hummer is futuristic, has interesting elements — like underbody cameras for off-roading and a T-top — and a massive presence. It doesnÂ’t need to do more. The addition of Super Cruise technology, however, is a nice touch. GM is serious about EVs The Hummer leads a blitz of EVs from GM, which is quietly yet ambitiously laying out an electric future.

GM Ultium tech can scavenge heat from everywhere, even you

GM likes to give us tidbits about its Ultium platform from time to time, and today it’s telling us about the platformÂ’s ability to capture waste heat from the propulsion system. In addition to capturing from the propulsion system, it can also capture humidity from both inside and outside the vehicle and even from passengersÂ’ body heat. Yes, you, your family and/or your friends are a usable heat source as far as GM EVs are concerned. It then deploys the heat in an advantageous way. If at this point, youÂ’re screaming, "Heat pump!" youÂ’d be right. WeÂ’re talking about an elaborate heat pump system that GM is using for its Ultium-based vehicles. Every Ultium-based GM vehicle gets this system that is covered by 11 patents and four publications. The waste heat it collects is used in a number of ways, but its primary use is to heat the cabin quickly and efficiently. GM claims it can heat the cabin of its Ultium-based vehicles quicker than vehicles with traditional internal combustion engines. Plus, when put to use, GM claims that using the heat pump provides its EVs with up to 10% more range than theyÂ’d have without. Beyond heating the cabin, the heat pump is capable of putting waste heat to use by preheating the battery prior to charging so that you can charge quicker. The system can even cool the propulsion system in preparation for Watts to Freedom (WTF) launch control starts. GM says this was vital in helping the Hummer EV achieve its bonkers 0-60 mph time of about 3 seconds. “Having a ground-up EV architecture gives us the freedom to build in standard features like UltiumÂ’s energy recovery capabilities,” said Doug Parks, GM executive VP of global product development, purchasing and supply chain. “This helps us squeeze more efficiency, performance and overall customer benefit out of our EVs.” GM says itÂ’s been developing heat pump technology since the EV1 and its heat pump. This is the modern evolution of that technology, and GM says itÂ’s going to be implemented in every Ultium-based vehicle as a standard feature. Related video: Green Cadillac Chevrolet GM GMC Technology Electric Future Vehicles

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.