2003 Mercedes-benz Slk-class 320 on 2040-cars

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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.

The most efficient gas or hybrid cars of 2024: Not the greenest, but still very green

Not a single electric vehicle appears on the “greener choices” list assembled by the American Council for an Energy-Efficient Economy (ACEEE) in its annual compilation of the most environmentally friendly cars in the United States. But for potential car buyers seeking an efficient, fairly affordable gasoline or hybrid vehicle this year, the list of 12 cars, trucks and SUVs can help with decision making. Topping this yearÂ’s list was the gas/hybrid Honda Accord, priced at $33,990 with an estimated annual fuel cost of $982. Rank Make & Model Powertrain Vehicle Class Green Score MSRP Estimated Annual Fuel Cost* 1 Honda Accord Gas Hybrid Large Car 62 $33,990 $982 2 Kia Niro FE Gas Hybrid Compact SUV 61 $28,315 $885 3 Mitsubishi Mirage Gas Compact Car 59 $17,955 $1,189 4 Lexus ES 300h Gas Hybrid Midsize Car 59 $44,590 $1,073 5 Lexus NX 350h Gas Hybrid Midsize SUV 57 $43,465 $1,207 6 Ford Maverick Gas Hybrid Compact Pickup 55 $24,900 $1,297 7 Toyota Sienna Gas Hybrid Minivan 55 $39,080 $1,304 8 Mini Cooper Convertible Gas Subcompact Car 54 $35,700 $1,412 9 Toyota Highlander Gas Hybrid Large SUV 54 $40,720 $1,348 10 Kia Soul Gas Small Wagon 53 $21,565 $1,467 11 BMW Z4 sDrive30i Gas Two-Seater 50 $53,600 $1,626 12 Mercedes-Benz GLA250 Gas Hybrid Large Van 49 $43,000 $1,596 13 Volvo V90CC B6 Gas Hybrid Midsize Wagon 45 $59,800 $1,843 14 Ford Ranger Gas Standard Pickup 43 $32,670 $1,968 *ACEEE analysis using EIA data of the annual cost of driving 15,000 miles In making its evaluations, the ACEEE examines each 2024 model based on its cost to human health from air pollution associated with vehicle manufacturing and disposal, the production and distribution of fuel or electricity, and vehicle tailpipe emissions. The group also takes into account air pollution associated with EV battery manufacturing. The organization also ranks what it calls the “greenest” cars — it selected the Toyota Prius Prime SE plug-in hybrid is the greenest model of 2024. As well as the “Meanest.Â’Â’ or least efficient vehicle. At the top of that list this year was Mercedes-Benz AMG G63. The group says that the greener choices are those that are available nationwide “with among the lowest environmental impacts in each vehicle class but that didnÂ’t make the Greenest List.

2016 Mercedes-Benz G550 Quick Spin [w/video]

If there ever was an automotive embodiment of the phrase, "If it ain't broke, don't fix it," that'd be the Mercedes-Benz G-Class. The G-Wagen has carried on largely unchanged since the 1970s, with only small updates throughout the decades. Today, it's the halo vehicle for Mercedes' entire SUV range, and while it's more luxurious and efficient than ever, it'll still climb a mountain if asked. "Our legend has a bright future," says Dr. Gunnar Guthenke, Mercedes' G-Class boss. And for now, that means the addition of a new base engine for the 2016 model year, as well as other small updates. The powerplant in question is Merc's new twin-turbocharged, 4.0-liter V8 – you know, the one from the AMG GT – tuned to produce 416 horsepower and 450 pound-feet of torque in the G550. Compared to the outgoing, naturally aspirated, 5.5-liter V8, the new engine is stronger by 34 hp and 59 lb-ft. And while official fuel economy numbers are still pending, Mercedes says the G550 is 17-percent more fuel efficient with this smaller, more powerful engine. Win-win. As for the rest of the G-Class, the 2016 model year changes are limited to a new front bumper with more pronounced air intakes (and the removal of the cow catcher bars), wider wheel arches, a few new colors (including some seriously bright hues), and a redesigned instrument cluster. Those are all well and good, but the star of the show is that 4.0-liter V8. It's a honey in the AMG GT, and it's a perfect fit under the hood of the G550. Driving Notes I'm kicking myself for not taking video of the exhaust note, because holy crap, the G550 sounds amazing. Mercedes' engineers should be applauded for the exhaust tuning on the updated G-Class. The result is a low, burbly, throaty V8 noise that comes bellowing out the SUV's side pipes. The extra 59 lb-ft of torque is really noticeable off the line. And like in the AMG GT and C63, the 4.0-liter V8 provides linear power delivery with no noticeable turbo lag. Mercedes says the 2016 G550 will do 0-60 in 5.7 seconds, compared to 6.0 seconds in the 2015 model. That's right, it's a 5,724-pound, box-shaped SUV that'll run nearly neck and neck with a base Porsche Boxster. In terms of on-road refinement, the G-Class is the same as it ever was. There's an optional, adjustable suspension for 2016, with Comfort and Sport modes, but the difference between the two settings is negligible.