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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.

Acura to roll out NSX Prototype for Mid-Ohio IndyCar race

Acura will tease us yet again with its next-gen NSX when it makes an appearance at Mid-Ohio Raceway before the circuit's IndyCar race early next month. To be fair, the car's in-motion debut won't take the form of a production model - that's still a ways off - the vehicle will be a prototype. It'll be sporting custom graphics and an eye-catching paint (wrap?) job to draw the attention of the spectators, but really, we just want to hear this thing rounding the legendary road course at full chat.
The NSX prototype doesn't look to be much different from the various showcars we've seen over the last couple of years, with the same mid-engined, hybrid V6 power and all-wheel drive all present and accounted for.
The display will take place before the Honda Indy 200 IndyCar Series on August 4. The race itself starts at 3:00 pm and will be shown on NBC Sports Network.

Acura, Penske reveal ARX-05 prototype racecar

CARMEL-BY-THE-SEA, Calif. — Acura pulled the cover off its striking Daytona prototype, called the ARX-05, as part of a new partnership with one of racing's most legendary names, Roger Penske. The racecar debuted Friday at The Quail, a vintage car show held during the week of the Pebble Beach Concours d'Elegance. Acura and Team Penske will campaign two cars next season in the IMSA WeatherTech SportsCar championship, starting with the Rolex 24 at Daytona in January. ARX is short for Acura Racing eXperimental, generation five. The car will run a twin-turbo 3.5-liter V6 engine that's based on the J35 series six-cylinder used throughout Acura's lineup. The body, designed by Acura global creative director Dave Marek's team, uses design cues from the company's road cars, including similar headlights. The chassis is based on the Oreca 07 setup. "We're already testing, and things are looking pretty good," said Art St. Cyr, president of Honda Performance Development and Acura Motorsports. Acura has raced endurance cars since 1991, finding success in IMSA and the former American Le Mans series. Two-time Indianapolis 500 winner Juan Pablo Montoya and Dane Cameron will drive one of the cars, while the other team to be announced later. Acura will face off against Nissan, Cadillac, Mazda, Oreca, Dallara and Multimatic Riley in the IMSA prototype field. The venture marks a return to sports-car competition for Penske, whose organization ran a Chevy Corvette in its first race at the 1966 24 Hours of Daytona and then operated victorious ALMS programs into the 2000s. Penske sees racing as a way to raise the image of Acura, whose cars he sells at his dealerships, Penske Automotive Group. "We want to take this brand to the next level," he said. "It's [racing] a core part of our brand and it's one of the ways we are validating our performance," said Acura vice president and general manager Jon Ikeda. After The Quail, the ZRX-05 is scheduled to appear at the Rolex Monterey Motorsports Reunion and in a featured area for concept and racing cars on the lawn at the Concours. Related Video: Featured Gallery Acura ARX-05 Daytona Prototype Reveal View 11 Photos Related Gallery Acura ARX-05 race car View 12 Photos Image Credit: Live photos copyright 2017 Drew Phillips / Autoblog.com Motorsports Acura Racing Vehicles Pebble Beach daytona prototype