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Mercedes Concept GLA45 AMG is ready to run

This is the Mercedes-Benz Concept GLA45 AMG, and what we mean by that is, "This is the Mercedes-Benz GLA45 AMG." Mercedes has just unveiled the liveried 'concept' at the 2013 Los Angeles Auto Show, giving potential customers a very good look at the newest lunatic in the AMG asylum - a 355-horsepower, 332-pound-foot crossover that uses the same 2.0-liter, turbocharged four-cylinder engine found in the CLA45 AMG and Europe's A45 AMG.
Joined with a seven-speed, AMG Speedshift dual-clutch transmission and an AMG Performance 4Matic all-wheel-drive system, Mercedes promises a sub-five-second run to 60 miles per hour. That's not just quick for a crossover, that's quick full stop.
That sleek, lifted body has also been tweaked by the minds at AMG's Affalterbach facility. A new rear spoiler, side sills and front clip are the primary aerodynamic tweaks. Aesthetically, AMG has fitted the requisite "Turbo" badges, gloss-black accents (including exhaust tips and roof rails) and a set of 21-inch, AMG-spec alloy wheels to round out the overall package. Based on the spy shots we've seen, expect slightly toned down aerodynamics when the GLA45 AMG arrives in showrooms.

Mercedes-Benz A45 AMG is Affalterbach's first big leap into the little pond

The recent history of AMG is turning out amped-up versions of Mercedes-Benz offerings that would hardly ever be mistaken for their sedate counterparts. Sure, you'd need to pay attention to pick a G-Class from the G63 AMG, but dual side-pipes are a quick giveaway. The Mercedes-Benz A45 AMG is not only a new era in Affalterbach's attention on smaller cars, it is probably also the most subtle transformation we can think of in the line-up.
Low and chunky enough in standard guise to make a sporting impression, the aesthetic makeover is confined to black trim around the lower rim of the hatch, black wheels with red brake calipers and a single, rectangular exhaust tip on either side of the diffuser. It's easier to make a positive ID inside, where the flat-bottomed steering wheel, red seatbelts and red-rimmed details say, "You know what I am..."
If the car is running, though, it won't take but a second. The 2.0-liter turbo spitting 360 horsepower and 332 pound-feet will grumble through a sport exhaust at idle, and bellow through the same on it's way to a 0-60 time of less than 4.5 seconds. And if you need something that looks a little harder - and you want those quad pipes - then the A45 AMG Edition 1 is the treasure you seek. There's a press release below for all the info you'll need until the hot hatch goes on sale in Germany later this year, and photos for the rest of us while we wait to find out if we'll get a chance to buy it.

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.