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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.

2016 Acura RDX arrives with freshened styling, powertrain enhancements [UPDATE]

UPDATE: The 2016 RDX comes with a six-speed automatic transmission, not a nine-speed. The text below has been edited to reflect this. Launched in 2012 for the 2013 model year, the second-generation RDX is hardly an old vehicle, and the luxury crossover is coming off its best sales year ever, according to Acura. Still, three years after the debut, the Japanese automaker is giving the CUV a thorough refresh with a facelift and bountiful new tech at the 2015 Chicago Auto Show, with sales set to kick off this spring. The most obvious update at the front for the 2016 RDX is Acura's Jewel Eye LED headlight array already found on some of its other models, but the improvements go a lot further than just the lighting. All of the fascia's lines appear just a little sharper and the added chrome helps grab the eye. The refinements are similar at the rear, where there are now LED taillights. While not obvious on the surface, the structure underneath is supposed to offer better frontal crash performance, too. Acura's engineers turned their attention to the RDX's powertrain for some tweaks, as well. The crossover now benefits from a nine-speed automatic gearbox to replace the previous six-speed. The 3.5-liter V6 with cylinder deactivation also gets a slight upgrade to make 279 horsepower and 252 pound-feet of torque – up 6 hp and 1 lb-ft over the 2015 model. The changes benefit fuel economy by one-mile-per-gallon on the highway with ratings of 20 mpg city and 29 mpg highway for the front-wheel drive version and 19/28 with all-wheel drive. The 2016 RDX is also packed with new tech to improve drivability and safety. Active front and rear engine mounts should improve NVH, and the all-wheel-drive system has more rear bias. Inside, the cabin trim sees an update, and heated front seats are standard. The optional Technology Package now gets an eight-way power front passenger seat, the company's dual-screen multi-info display and both blind spot and rear cross traffic monitoring. However, for those looking for a ton of gadgets to brag about, the new Advance Package option is the place to be. It includes rain-sensing wipers, front fog lights, remote engine start, ventilated front seats, front and rear parking sensors, an auto-dimming driver's side mirror and the full suite of the AcuraWatch safety assist functions.

Jay Leno finally gets his hands on the 2017 Acura NSX

It has been five years since Jay Leno and Jerry Seinfeld starred in a commercial about which one of them would get the first example of the new Acura NSX. After a long wait, they finally get a chance, but Leno is the first to check out the coupe in the latest video from Jay Leno's Garage. The denim-clad host spends over 30 minutes with lead designer Michelle Christensen and Ted Klaus, global development chief engineer, to get the full scoop on the hybrid supercar. Leno and Christensen get into the nitty-gritty about the design process for the latest NSX, and she points out her favorite parts of the finished product. She had quite a challenge creating the new supercar. Over the model's long gestation, every adjustment to the shape forced changes elsewhere to direct the airflow correctly, and then the decision to switch to a different engine configuration added even more time. Klaus focuses on the engineering side, like using the Ferrari 458 and original NSX as the major benchmarks for the new one. He also takes a ride with Leno, and the comedian even cracks a grin driving it. Leno doesn't usually show much emotion behind the wheel, so the little smirk is high praise from him. Carve out some time for a detailed walk-through about the 2017 NSX in the latest clip from Jay Leno's Garage. Related Video: