2007 Mercedes-benz Gl450 Sport Utility 4-door 4.6l 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.

2018 Lincoln Navigator vs luxury SUV rivals: How it compares on paper

The all-new 2018 Lincoln Navigator is an impressive, luxury-lined beast. However, while its Black Label interior stood out most during our first drive of the new Navigator, it also seemed pretty clear that much of this full-size SUV was superior to the competition in a number of fundamental ways. Its Raptor-sourced 3.5-liter V6 had class-leading power for one, and its third-row seat seemed as spacious and comfortable as its rivals' are cramped and barely usable. To search for your next new vehicle, try Autoblog' s Car Finder. Yet, I wanted to take a closer look at how the Navigator fully compares on paper to its competitors - especially the Cadillac Escalade with which it most directly competes. The below spreadsheet should tell the whole story, but as you can see, there's an awful lot of class-leading green highlighter in the Navigator's column. The cargo volume and third-row legroom numbers are particularly telling, with the latter actually going up to 42.3 inches when you slide the second-row fully forward. Now, a few things to note about the above spreadsheet. The GLS-Class is also available as the GLS 550, which boasts a 4.7-liter V8 that just comes up short to the Navigator with 449 horsepower but has to deal with only 5,578 pounds. Its $94,950 price tag is comparable to the Navigator Black Label. Much of the LX 570's information is also applicable to the Toyota Land Cruiser, which, badge aside, could certainly be considered a member of this segment given its feature content and still-hefty price tag. It has better ground clearance and approach/departure angles than its Lexus sibling, along with an as-indicated lower price. Much of the Escalade's information also applies to the GMC Yukon Denali, while the Infiniti QX80 is applicable to the Nissan Armada. Related Video: Cadillac Infiniti Lexus Lincoln Mercedes-Benz SUV Luxury Off-Road Vehicles consumer lincoln navigator

2015 Chinese Grand Prix shines bright sun on the dark days of racing

Yes, we tuned into the Formula One Grand Prix in Shanghai China to see a race. But we all know we really tuned in to see if Ferrari, or any other team, could make it a competitive race with Mercedes-AMG Petronas. Based on qualifying, things didn't get off the best of starts: Lewis Hamilton made it four-out-of-four at the front, leading all three Free Practice sessions and then taking pole position in his Mercedes. Nico Rosberg is making the most of his time in the simulator, getting closer to Hamilton as the months go by. This time he lined up in second, just 0.042 in arrears. Ferrari did its best to temper expectations after Malaysia. Even though Sebastian Vettel qualified in third, almost a second behind Hamilton, the Scuderia's race pace is still considered a danger. Kimi Raikkonen's final hot lap went sour in Turn 3 and dropped the Finn to sixth place on the grid. In between the Ferraris, Williams is another team desperately working to maintain its advantage, and both of its drivers capitalized on Raikkonen's misfortune. Felipe Massa took fourth, Valtteri Bottas was in fifth. Daniel Ricciardo led the Infiniti Red Bull Racing charge in seventh, ahead of Romain Grosjean in the Lotus earning a spirits-lifting eighth. The two Saubers continue to show how good the Ferrari engine is, with Felipe Nasr taking ninth position and teammate Marcus Ericsson in tenth. Yet when the lights went out, so did the racing, for the most part. At the end of the first lap, because of some excellent moves by Raikkonen on both Williams' and a terrible start by Ricciardo that dropped him to seventeenth, the order was Hamilton, Rosberg, Vettel, Raikkonen, Massa, Bottas, Grosjean, Nasr, Ericsson, and Pastor Maldonado in the Lotus rounding out the top ten. At the end of the race, the only positions that had changed were the final two: Ricciardo had a laps-long battle with Ericsson, passing, getting repassed, then passing again to take ninth for good, with Ericsson finishing tenth. Maldonado suffered the worst in a battle with Jenson Button in the McLaren, when Button misjudged the entry into Turn 1 for a pass and clouted the back of the Lotus. Button was able to finish but Maldonado had to retire. Yes, there were some decent moments in between, like Bottas getting by Massa at the start, then Raikkonen getting past Massa in the first few corners and the Finn's move on Bottas also letting Massa through.