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2021 Acura TLX Long-Term Update | Drive mode selector is a surprise delight

You may have seen last week my column espousing the sensory benefits of physical switchgear in cars. They can add a bit of fun and character in the smallest ways. As it turns out, our long-term Acura TLX has a great example of this idea: the drive mode selector. In most cars, drive modes are typically chosen via a nondescript button tucked away in the center console. Sometimes the selector is buried in an infotainment menu. But in the TLX, it’s a huge, gleaming knob placed front and center in the main control stack. It would be impossible to miss. ItÂ’s actually even more prominent than the buttons for shifting. 2021 Acura TLX A-Spec View 51 Photos With the size and placement, itÂ’s a nice dial to grasp, and works with smooth action and a solid stop in either direction for flipping through modes. But what really brings it together is the speed at which modes are selected, and the sound the infotainment system makes upon choosing one. In some cars it can take a long time for the system to acknowledge your selection and engage it, but the Acura activates it nearly as soon as youÂ’ve let the dial snap back to center. And it confirms your choice with sort of whoosh-y electronic clink through the speakers. ItÂ’s the kind of quick reaction and sound design you get from high-quality video game menus. All of these aspects make the TLX nicer to use and feel more premium. It doesnÂ’t feel like a hassle to change drive modes since it takes very little time and works well. ThatÂ’s especially welcome if you like driving it in the sport mode, since the car defaults to the normal mode on start-up. It also makes the car feel like it has fast-acting software befitting a premium car. It may seem like a small thing, but small things matter when cars have become so good. And I appreciate that Acura took its time with this seemingly little component. Related Video:

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 NSX GT3 racecar bares all in raw carbon

Acura slowly and dramatically revealed the NSX over a period of years. There were previews, concepts, and lots of teases before Acura finally showed us the whole thing. It's a different story for the racecar. And today, the wraps come off the FIA GT3-spec NSX to show all of its bare-carbon glory. The NSX GT3 strips away more than just the paint from the standard road car. The racecar comes sans hybrid system, meaning all the power from the twin-turbocharged 3.5-liter V6 is sent solely to the rear wheels. Modifications to the body include a large rear wing, underbody diffuser, and bigger hood vents for engine cooling. While the hybrid system may be gone, the NSX GT3 uses the same block, heads, valvetrain, crankshaft, pistons, and dry sump lubrication system as the road car. Power is sent through a six-speed sequential gearbox instead of the road car's nine-speed. The NSX GT3 will be built alongside the street version in Ohio. Honda engineers in Japan and North America shared in the development. Final GT3 homologation will be completed by the company's Honda Performance Division in Santa Clarita, CA. Related video: