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A smoother operator | 2017 Acura MDX Sport Hybrid First Drive

There's a lot to unpack when trying to understand the 2017 Acura MDX Sport Hybrid. Acura is billing it as a three-row crossover infused with NSX technology via a sport-oriented hybrid drivetrain. So it's a hybrid crossover, sure. But it doesn't comport itself like a traditional crossover, nor is it a conventional hybrid. What it is, underneath, is an intentionally subtle blend of impressive technologies doing their best to appear transparent – and it's too subtle, I fear, to be appreciated by those who'd like it the most. This is a lot of foreshadowing, but if you're not familiar with the MDX Sport Hybrid's powertrain, let's fill you in. The MDX Sport Hybrid uses the same basic system as the 2014 RLX Sport Hybrid, with some newer NSX battery tech sprinkled in, packaged neatly into the refreshed third-generation MDX platform. The system improves handling and efficiency – but more important, it smoothes out the harshness of shifts and engine stop-starts. We do need to examine the system in some detail to understand how all this affects the MDX as a whole, so let's go toe to tail. Up front is a transversely-mounted 3.0-liter V6 making 257 horsepower and 218 pound-feet of torque, as well as featuring i-VTEC and cylinder deactivation. It's slightly smaller than the 3.5-liter V6 found in the conventional MDX and many other Honda and Acura products. Attached alongside is a Honda-produced 7-speed dual-clutch transmission that has a 47 hp, 109 lb-ft electric motor-generator stuffed inside. Amidships are the battery pack and the electronics to control it, and stretching aft from there are large cables feeding power to a pair of electric motors that reside in single housing, one for each wheel. Together, they produce electron witchcraft and torque-delivery wizardry – and add 72 hp and 108 lb-ft of torque to the mix. The total system output is 321 hp and 289 lb-ft of torque – a gain of 31 hp and 22 lb-ft over the conventional MDX SH-AWD. Beyond the raw numbers, there's the remarkable subjective benefit of the Sport Hybrid's drivetrain. Engine start-stop events are quiet and smooth, nearly imperceptible when under way – in stark contrast to the too-perceptible shudder of competing engines kicking on. The electric motors (mainly the one residing in the transmission) add in power to make up for the lull during a shift, making shifts up or down seamless, as well as providing regenerative capacity.

NHTSA gives okay for three automakers to skirt tire-related recalls

BMW, Honda, and Mercedes-Benz are all going to avoid small recalls, after the National Highway Traffic Safety Administration issued petitions for "findings of inconsequential noncompliance" to the three manufacturers, according to Tire Business. Basically, the petitions allow the brands to avoid recalls for some very, very minor issues.
BMW had tire placards on 364 X6 M CUVs that stated the car could only handle four passengers, when in reality it had room for three in the back. Actual plausibility of fitting three real humans in the slope-roofed Bimmer aside, the Munich-based manufacturer argued it was inconsequential, as the placards were correct regardless of the number of passengers.
Honda's case focused on 212 2011 and 2012 Acura TSX sedans equipped with 18-inch wheels. The TPMS systems on these cars were set for 17-inch wheels, rather than the larger hoops, but even with the lower settings, the tires maintain adequate load capacity.

Acura NSX production delayed

Listeners of the Autoblog Podcast will be familiar with my opinions on the Acura NSX. While I love the idea of Acura building a halo car again, I've routinely joked on-air that the car will never, ever reach production and will continue being teased and previewed ad nauseam. So I'm chuckling at this news: the NSX is being delayed again. To be fair, while it sounds like a big deal – pushing the NSX back from model year 2016 to 2017 – this is a fairly minor delay in the grand scheme. Instead of starting production this fall, as previously announced, the new supercar will start rolling down the line at Honda's Marysville, OH factory in the spring. "Trial production" has already started, Honda says, while briefly acknowledging the delay in the attached press release. While Honda offered no reason for the delay in volume production, Automobile claims it's the fault of the move to fit two turbochargers to the V6, which was made midway through development. Fitting the two iron lungs meant rearranging the six-pot into a longitudinal layout. Here's hoping there are no further delays. Scroll on for a look at Honda's press release, which does its best to gloss over the NSX delay while talking about the company's new Performance Manufacturing Center in Marysville. Related Video: Performance Manufacturing Center: Precision Craftsmanship Aug 14, 2015 - CARMEL-BY-THE-SEA, Calif. The next-generation Acura NSX is produced at the new, dedicated Performance Manufacturing Center (PMC) in Marysville, Ohio, using domestic and globally sourced parts. With trial production already underway and production start-up scheduled for spring 2016, this world-class manufacturing facility employs groundbreaking techniques in weld, body construction, body painting, final assembly and quality confirmation to ensure the highest levels of precision and craftsmanship. More details on the unique and innovative manufacturing processes at the PMC will be rolled out over the months leading up to the start of production, but the following highlights of the new facility were shared during the 2015 Monterey Automotive Week: Innovative blend of people and technology: throughout the PMC, NSX production is centered around the skills of approximately 100 experienced engineers and technicians building the NSX to precise levels of quality and craftsmanship.