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Best and Worst GM Cars

Oh yes, because we just love receiving angry letters from devoted Pontiac Grand Am enthusiasts, we have decided to go there. Based on a heated group Slack conversation, the topic came up about the best and worst GM cars. First of all time, and then those currently on sale, and then just mostly a rambling discussion of Oldsmobiles our parents and grandparents owned (or engineered). Eventually, three of us made the video above. Like it? Maybe we can make more. Many awesome GM cars are definitely going unmentioned here, so please let us know your bests and worsts in the comments below. Mostly, it's important to note that this post largely exists as a vehicle for delivering the above video that dives far deeper into GM's greatest hits and biggest flops, specifically those from the 1980s and 1990s. What you'll find below is a collection of our editors identifying a best current and best-of-all-time choice, plus a worst current and worst-of-all-time choice. Comprehensive it is not, but again, comments. -Senior Editor James Riswick Best Current GM Vehicle Chevrolet Corvette We were flying by the seats of our pants a bit in this first outing and my notes were similarly extemporaneous. When it came time to tie it all together on camera, I failed spectacularly. Thank the maker for text, because this gives me the opportunity to perhaps slightly better explain my convoluted reasoning. I chose the C8 Corvette because it's simply overwhelmingly good, and it's merely the baseline from which this generation of Corvette will be expanded.  While the Cadillac CT5-V Blackwing (more on that in a minute) is an amazing snapshot of GM's current performance standing and its little sibling so enraptured me that I went out and bought one, their existence is fleeting. Corvette will live on; forced-induction Cadillac sport sedans, not so much. So while all three are amazing machines when viewed in a vacuum, the Corvette stands above them as both a reflection of GM's current performance credentials and a signpost of what is to come. So, given the choice between the C8 and the 5V-Blackwing right now, I'd choose the C8. In 10 years, when the Blackwing is no longer in production and Corvette is in its 9th generation? Well, that might be a different story. Now, just pretend I said something even remotely that coherent when we get to the part of the video where I try to make an argument for the 5-V Blackwing as best GM car I've ever driven. Or just laugh at me while I ramble incoherently.

Next Chevrolet Malibu to have 'groundbreaking,' 'passionate' design

In our First Drive of the Chevrolet Malibu after its redesign in 2013 we wrote, "Chevy has quickly worked up a host of changes for its ever-important midsize sedan, and will be launching this 'there, we fixed it' 2014 Malibu like it's an all-new product." Still, no one cared. The Malibu has been mentioned in eight posts this year, all but two of them dealt with recalls, and one of those two was about a 2011 Malibu university science project. It came up in precisely zero posts from November 2013 to March 2014. That's why, according to a report in Automotive News, Chevrolet honchos are "hustling" to have a new Malibu ready in a year. Mark Reuss, General Motors' head of global product development, said it will have "groundbreaking design" and "groundbreaking technology," and asked investors who were showed a picture of it, "When is the last time you saw a [midsize] car this distinctive and this dramatic from General Motors?" Doubling down on the bullishness, Reuss said, "We've got our act together here on the midsize-car segment." Then, throwing every last chip on the pile, global design head Ed Welburn said the next Malibu's design will "make a significant statement" with "a very passionate design." Based on the number of comments Malibu posts get, we figure a fair few number of you would love for this to be the case; yet this is a lot of braggadocio to slather on a car that probably hasn't made "a significant statement" since Elton John had a number one record with Honky Chateau. That was 1972, if you're trying to remember. No matter the looks, the AN report says the new 'Bu will make a profit statement, selling for more money while costing less to produce. Alongside the Cruze, GM figures the pair will bring in an extra $800 million in variable profit in 2016. Which, in case it ends up being another 'butterface,' isn't bad for a silver lining. Featured Gallery 2014 Chevrolet Malibu: First Drive View 36 Photos News Source: Automotive New - sub. req. Design/Style Chevrolet GM Sedan

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging