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GM reportedly developing 2.5-liter turbo four-cylinder

General Motors is allocating a massive amount of resources to developing electric technology, but it's not forgetting about the gasoline-powered cars that make up the bulk of its sales. It's reportedly designing a new 2.5-liter turbocharged four-cylinder engine based on its 2.7. Citing "sources familiar with the matter," enthusiast website GM Authority wrote that the 2.5-liter four is "in [the] final stages of development," meaning it should be announced sooner rather than later (assuming the report is accurate). Technical details are few and far between as of writing. The publication learned that the 2.5 will be part of the Cylinder Set Strategy (CSS) family of engines and that it will be mechanically related to the 2.7-liter currently found in the Chevrolet Silverado 1500, among several other models. It will feature dual overhead camshafts. It's too early to tell which models the 2.5-liter four-cylinder will end up in, or how much power it will generate. The output will likely depend on the application. For context, the 2.7 delivers 310 horsepower at 5,600 rpm and 348 pound-feet of torque between 1,500 and 4,000 rpm in the Silverado. In the smaller Colorado, it provides anywhere between 237 and 310 horsepower depending on the trim level selected. While this is pure speculation, our crystal ball tells us the engine will end up powering crossovers. It's an easy deduction to make. We can't imagine it will be offered in the Silverado, and seeing it in the Colorado is unlikely because its entry-level engine develops 237 horsepower; there's likely not much of a market for a midsize truck with 200 or so horsepower. Putting it in the Corvette wouldn't make sense and the Camaro has nearly reached the end of its life cycle without a successor planned. This leaves us with Chevrolet's range of crossovers, like the Equinox, as well as their GMC-, Buick-, and Cadillac-branded counterparts. We're not discounting the possibility that the cars set to receive the 2.5 haven't been unveiled, but those are likely crossovers, too; the odds of seeing another big Chevy sedan are very, very low. General Motors hasn't commented on the report, and it hasn't publicly announced plans to expand its CSS family of engines. If the report is accurate, we should learn more about the new turbocharged, 2.5-liter four-cylinder engine in the not-too-distant future. Featured Gallery 2022 Chevrolet Equinox RS View 56 Photos Buick Chevrolet GM GMC

2020 Buick Encore GX pricing makes it a better bargain than the smaller Encore

In April, Buick revealed the Encore GX at Auto Shanghai. At the time, we thought there was a chance the slightly larger GX would supplant the Encore in the U.S. By August, we learned that wouldn't happen, the Encore GX slotting into the lineup between the Encore and the Envision. With nearly $8,000 between the starting prices of the Encore and the Envision, there'd be plenty of room for the GX to find a good home leaving plenty of MSRP daylight between the crossover bookends. That doesn't appear to be what's happened, though. CarsDirect got hold of an early order guide for the Encore GX, and writes that the Encore GX in Preferred trim will cost $24,100 before a $995 destination charge, totaling $25,095. That's $900 more than the entry-level Encore in 1SV trim, but $500 less than the Encore in comparable Preferred trim.    The Encore offers an intermediate Sport Touring trim between Preferred and top-level Essence trims. The Encore GX will come in an intermediate Select trim, which CarsDirect didn't mention a price for. Stepping up to the top Essence variant with front-wheel drive costs $29,495 for the Encore GX, $800 less than a similar Encore, which costs $30,295.   If these are the figures that show up on dealer lots, the Encore GX seems like a no-brainer. The Encore rides on an older GM platform called GEM, for Global Emerging Markets, the GX model is built on GM's new VSS-F architecture. Both are fine looking vehicles, but the GX is a little more handsome. The Encore offers one engine, a 1.4-liter four-cylinder with 138 horsepower and 148 pound-feet of torque, shifting through a six-speed transmission. The base engine on the Encore GX will be a 1.2-liter turbocharged three-cylinder with an estimated 137 hp and 166 lb-ft, shifting through a CVT. The second GX engine is a 1.3-liter turbocharged three-cylinder with an estimated 155 hp and 174 lb-ft, optional on the front-wheel drive Select and Essence trims, standard on every all-wheel-drive model. That more powerful motor shifts through a nine-speed automatic.  As if all that weren't enough, the GX's reason for being is that it offers more room. An additional three inches in length provides an extra 4.7 cubic feet of cargo room behind the second row. The GX wins on safety, too, coming standard with tech like forward collision alert, lane keep assist, lane departure warning, and automatic emergency braking.

Automakers' sound systems: Crank it, don't yank it

Years ago, one of the first things most music lovers did after buying a new vehicle was drive to an aftermarket stereo shop to get the crappy stock components swapped for better gear. And you'd typically get not only better sound but also more bang (and boom) for your buck. But in the past decade or so, the overall quality of OEM audio has dramatically increased, while car electronics became more complex, removing the incentive for most new vehicle owners — and all but the most hardcore DIYer — to start from scratch. In 2010, I did a comparison of the average costs for OEM electronics vs. similar offerings from the aftermarket, and back then automakers' stock premium systems were by far the best bargain — and are probably an even better value now. The premium 14-speaker, 1,200-watt JBL system in the all-new 2019 Toyota Avalon is a prime example of this trend. It's standard on the top two Limited and Touring trims and is available as a $680 audio upgrade on the XLE and XSE. I doubt you can even buy 14 speakers and 1,200 watts of amplification from the aftermarket for 700 bucks, much less have it all installed. And because the system is bundled with Toyota's Entune infotainment system, Apple CarPlay and a surround-view camera, removing the head unit means you would likely lose these features. Another advantage of OEMs and their audio partners is they can design the car around the audio system. In the past, automakers would typically place speakers where convenient for packaging, not for optimal sound reproduction, and audio engineers were forced to compromise. But as with the Avalon's premium JBL audio system, this is starting to change. At a recent behind-the-scenes peek for media into the process of developing the system, Toyota and Harman engineers delved into the minutia of sealing the inner panel of the front doors to create an enclosure for 6x8-inch woofers, making space in the pillars for JBL horn tweeters and extensively measuring the acoustic properties of the interior to tune the sound to the space. I'm met some creative and skilled car stereo installers, but none with a degree in psychoacoustics. The system is also the first to feature Quantum Logic Surround that creates a multi-channel listening experience from two-channel sources. And it includes Harman's Clari-Fi processing that "rebuilds key details lost" in compressed audio formats used by streaming music services and MP3s.