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2020 Acura NSX Suspension Deep Dive

The Acura NSX has been a special car as long as I’ve been in the business. The first one came out in 1990, the same year I started my career in automotive engineering. I vividly remember driving one briefly back then when we brought one in for benchmarking. I'd drive it again 22 years later when my previous employer bought a used 1991 example for a long-term test. Reader interest was sky-high and the car was still gorgeous, but the march of time and automotive engineering had clearly left it behind. Then, in 2016, a second-generation NSX emerged, and it was packed with bleeding-edge thinking. It has a 3.5-liter twin-turbo V6, but this new NSX is a hybrid with an electric motor-generator sandwiched between the engine and its nine-speed DCT transmission. Two more electric motors – one for each wheel – power the front axle. There they can add traction, regenerate electricity under braking and dole out hyper-accurate levels of torque vectoring. The carÂ’s tire package was changed from Continental SportContact 5 to SportContact 6 tires in 2019, and numerous suspension re-tuning tweaks came along with them. The result is a lively and well-balanced car that is relentless when driven hard and a pussycat around town. LetÂ’s see what theyÂ’ve got going on under there.   At first glance the 2020 Acura NSX appears to have dual wishbone front suspension. But we canÂ’t tell for sure because that big two-piece brake rotor is in the way. The coil-over shock looks obvious, but a few odd details are apparent even from here.   This view also seems to indicate double wishbone suspension. But the pivot axis (green arrow) between the upper and lower ball joints looks wrong – itÂ’s far too vertical. WeÂ’re missing something. But I would be remiss if I failed to point out a few other things before we moved on. For one, the front drive axle confirms this to be an all-wheel-drive machine. Second, the forged aluminum damper mounting fork (yellow) that envelops the axle is mounted to the lower arm about 75% out from the armÂ’s inner pivot. The spring and damper motion ratio would be 0.75-to-1 relative to wheel movement, with a tiny reduction due to its lean angle. Lastly, just look at the huge cast aluminum upright (white). Beautiful. Normally these are called hub carriers or steering knuckles, and I use the terms interchangeably. But the motorsports-derived term upright is normally applied when the piece is tall and, well, upright like this one.   This explains everything.

2020 Acura TLX PMC Edition will be hand-built alongside the NSX

At next week's 2019 New York International Auto Show, Acura will reveal a pair of new models, the 2020 TLX PMC Edition and MDX PMC Edition Prototype. The duo will be limited-run models that get final assembly at Honda's Performance Manufacturing Center (PMC) in Marysville, Ohio, along the same production line as the Acura NSX. The TLX PMC Edition goes on sale this summer with a starting price of around $50,000. Production will be limited to just 360 models hand-assembled over a six-month period. The production version of the MDX PMC Edition will be built sometime after the TLX PMC run is complete. Think of the TLX PMC as an A-Spec performance model with features available with the Advance Package like a surround-view camera, heated rear seats, a heated steering wheel and power folding mirrors. Currently, the two packages are mutually exclusive. There are no performance upgrades beyond what the A-Spec already offers. Power from the 290-horsepower 3.5-liter V6 is sent to all-four wheels through a nine-speed automatic. The TLX PMC uses Acura's Super-Handling All-Wheel Drive (SH-AWD) to manage the power at each wheel. It also gets the A-Spec's stiffer dampers and quicker steering ratio. 2020 Acura TLX PMC Edition View 11 Photos The exterior design, too, is based on the TLX A-Spec, with a restyled front bumper, dark chrome trim, larger exhaust tips and a black spoiler. Likewise, the interior is based on the A-Spec trim, with heated and ventilated front sport seats, leather and Alcantara seating, a black leather steering wheel, a black headliner, a red instrument cluster and red accent lighting. Black 19-inch 10-spoke wheels and Valencia Red Pearl paint are exclusive to the TLX PMC. The paint uses mica, metal flake and super-high transparency nano pigments to give it a richer color and was previously only available on the NSX. The roof panel, door handles, grille and lower bumper are also gloss black. What makes the TLX PMC Edition (as well as the future MDX PMC) truly special is the hand assembly. Basically, the body-in-white (a basic unfinished unibody) will move from the main assembly plant in Marysville to the nearby Performance Manufacturing Center. There, workers will install the drivetrain, suspension, wiring harnesses and electronics. The car then goes to the paint booth before the interior is installed.

2019 Acura MDX refresh brings some sharp enhancements

The outgoing Acura MDX has nothing to be ashamed of, but the thing about refreshes is that the engineers and product teams always have something to fine tune. Some of it is planned in advance — the cosmetic upgrades and the A-Spec trim were probably always part of the product roadmap. But there are also some tweaks that seem to be a response to customer feedback. Let's take a closer look. Most important, some of the goodies reserved only for the old Sport Hybrid will now be available on all MDXs. Notably, the Active Damper System — a continuously adjustable valve that controls the flow of hydraulic fluid within the damper — is available on non-hybrid MDXs for the first time. The system has several settings, from plush to firm. We found this system worked very well on the Sport Hybrid during our first drive, so it's a useful upgrade that buyers will be able to readily appreciate. Next up is an A-Spec appearance trim, which looks sportier but doesn't offer any additional performance or comfort features, just like the rest of Acura's A-Spec models at this point. For the MDX, wider 20-inch wheels and a combination of gloss black and "dark chrome" trim compliment a revised front fascia and grille. Inside, the seats get a mix of Alcantara and leather with contrasting stitching, there are unique gauges, sport pedals, and a thicker steering wheel. It looks decent enough, particularly inside, and there's enough there to make the trim stand apart from the more pedestrian trims. Oh, and there's an exclusive color: Apex Blue Pearl. A quick aside on prices: The base MDX without SH-AWD runs an MSRP of $45,295, and the A-Spec (only available with SH-AWD) is $55,795. Normal MDXs get a few more color options, although they'll cost extra: Majestic Black Pearl, Performance Red, and Canyon Bronze Metallic. One no-cost color option that's new is Gunmetal Metallic. Inside, there are some additional interior options, like Desert Olive Ash wood trim, contrasting seat stitching, and standard 4-way power lumbar adjustment on the front seats. Advance Package MDXs get wider 20-inch wheels, too. And now on to those tweaks and enhancements that might not have been planned a long time ago in a product meeting far away. The engine stop/start function has been tweaked to be smoother and quicker, thanks to an upgraded brake sensor and some software tweaks.