2008 Mercedes-benz E350 4matic Sedan 4-door 3.5l 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.

Mercedes-Benz releases US-spec 2014 Sprinter details

Last week, Mercedes-Benz released the details for the updated 2013 Sprinter intended for global markets, but this week it has announced what changes are being made to the US-spec version of the van for the 2014 model year, including the Freightliner model. As expected, most of the changes made to the European model will be present on the 2014 Mercedes-Benz Sprinter when it goes on sale in the US, which is expected to be this fall.
The biggest difference between the Sprinter announced last week and the one headed to our shores is what is found under the hood. While European Sprinters will come with diesel engines and offer the availability of a supercharged four-cylinder gasoline or CNG engine, US Sprinters will still offer the 3.0-liter V6 BlueTEC diesel. This year's Sprinter now comes standard with a new base engine, the 2.1-liter four-cylinder BlueTEC diesel. This smaller engine will produce 161 horsepower and 265 pound-feet of torque, and will be paired to a seven-speed automatic transmission; the optional 3.0 V6 puts out 188 hp and 325 lb-ft of torque, and will be mated to a six-speed auto.
Fuel economy for the new Sprinter has not been announced, but Mercedes-Benz has made numerous changes with the goal of improving efficiency. To this end you'll find a new, low-friction rear axle and the optimization for the generator, fuel pump and power steering pump.

Mercedes-AMG GT3 racing towards Geneva debut

So far, we've only seen the fundamental road-going coupe version of the new Mercedes-AMG GT, but like the Porsche 911 it targets, you can bet there will be more derivatives to follow. And this is our first glimpse at the first of them. At the Geneva Motor Show next month, Mercedes will showcase the GT3-spec racing version of the AMG GT. The German automaker didn't tell us much more in making the announcement, but did release a pair of cropped teaser sketches showing the sports car with all manner of racing appendages, including what looks like a massive rear wing. Once ready for action, the new Mercedes-AMG GT3 will replace the previous SLS AMG GT3 that won the Nurburgring 24-hour race a couple of years back. But with every automaker and its sister company getting in on the GT3 racing action these days, it'll face some stiff competition on the track. The new Mercedes-AMG GT3 February 12, 2015 Neatly coinciding with the upcoming market launch of the road-going version of the Mercedes-AMG GT, the next stage of the vehicle's evolution is already here: the sports car and performance brand of Mercedes-Benz is presenting a new customer sport racing car that complies with FIA GT3 race regulations in the form of the new Mercedes-AMG GT3. With this, the second customer sport car to be developed by Mercedes-AMG, the Affalterbach company is seeking to build on the success of the SLS AMG GT3 and further expand the customer sport programme first started in 2010. The superb racetrack performance of the road-going GT forms the ideal basis on which to model the new Mercedes-AMG GT3, which is due to make its debut appearance at the Geneva Motor Show. Featured Gallery Mercedes-AMG GT3: teasers Geneva Motor Show Mercedes-Benz Coupe Racing Vehicles mercedes-amg 2015 Geneva Motor Show rendering mercedes-amg gt sketch mercedes-amg gt3