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Acura TLX GT Racecar bringing the 'X factor' to Pirelli World Challenge

One doesn't normally think of Acura offering anything to mix it up with the SRT Viper, Lamborghini Gallardo, Mercedes-Benz SLS AMG, Nissan GT-R, Audi R8 and Ferrari 458 Italia (at least while the NSX is still off in the ether), but that's exactly what's about to happen. Honda's premium outpost is jumping into the top tier of the Pirelli World Challenge with this 2015 TLX GT.
The surprise reveal of this racecar at today's Detroit Auto Show will be campaigned by RealTime Racing, no stranger to racing Acuras, in the GT class (previously, the team had campaigned the series a rung down in GT-S).
The racecar is powered by a twin-turbo variant of the direct-injected V6 to be found in the production TLX sedan, right along with its Super-Handling All-Wheel Drive system. There's no word on how much power this HPD-massaged engine will put out in race trim, but we won't have to wait long to hear it fire up - the car is set to take to the track with team owner Peter Cunningham at the wheel in the next few weeks.

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.

2019 Acura NSX Track Test Review | Exotic tech, exhilarating performance

EAST LIBERTY, Ohio — The 2019 Acura NSX makes sonorous noises behind my ear as the tachometer soars toward 7,500 rpm. My hands grip the squared-off steering wheel a bit too hard as I scrub off about 60 mph and dive into the first corner of the Transportation Research Center (TRC) dynamic handling course. There's 3,878 pounds of car beneath me, but the front tires do exactly what my hands tell them to, without hesitation, and I'm through the double apex corner without even thinking about the defiance of physics I just witnessed. On paper, a nearly 4,000-pound track car makes no sense. Yet in practice, it's just as tossable and eager to change direction as something much lighter. This is the NSX's party trick, thanks to some magic with the suspension and all-wheel drive system on this car. And while the new NSX is a very different vehicle than its predecessor, it was born of a similar spirit of innovation and forward thinking. The original Acura NSX hit the streets in 1991, establishing a new set of rules for every supercar released since. Constructed of an aluminum body — still an exotic material mainly used in competition vehicles — with curves that still drop jaws today, it was every bit as sophisticated as a Ferrari. But unlike Ferraris of the time, it was also reliable and easy to drive. Slide behind the wheel of a 1991 NSX, and you'll be transported back to a time when outward visibility was still in style. You can see the ground right in front of the nose. Turn around, and there's nothing blocking your view but a low wing. It's essentially a bubble canopy. Acura knows owners of the original NSX, your author included, absolutely love this about their cars. The effort to make the cockpit of the NSX similar is appreciated, even if modern crash standards prevent a perfect implementation. There are other subtle throwbacks. Every original NSX made a distinctive intake whine when winding it up to 8,000 rpm, and the new NSX has real intake noise physically pumped into the cabin to replicate this sweet sound all the way through the rev band. Another echo of the original is the simplified, sedate dash layout — eminently usable and likely to age well. A simplified version of the new RDX infotainment system would have fit the bill, too, but sadly it's not present. Under way, however, the generational similarities cease. Our time on this trip in the 2019 model was spent solely on track at TRC, and it was a wholly different experience from the old car.