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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.

10 automakers sued over keyless ignitions

Keyless ignition has rapidly proliferated throughout the auto industry to become a fairly normal feature on new cars. It's supposed to offer the convenience of keeping the fob in your pocket and just pressing a button to drive away. However, ten major automakers are now being sued in US District Court over claims that the system is dangerous, Reuters reports. The suit alleges that people are forgetting to shut off the engine, and the lack of an idle timer is the cause for 13 deaths by carbon monoxide poisoning and multiple injuries. The suit currently includes 28 plaintiffs, according to Reuters, but the lawyers are asking for class-action status to potentially add many more. The case goes after a major swath of the industry, including BMW, Daimler, FCA, Ford, General Motors, Honda, Hyundai, Nissan, Toyota, and Volkswagen, plus their related brands like Acura, Infiniti, Mini, and Lexus. In all, over five million vehicles are affected. The assertion here is that people walk away from their vehicle without shutting it off because they believe the engine shuts off automatically. If parked in a garage, carbon monoxide can build up, leading to poisoning. The lawyers claim automakers know this is a problem and also cite 27 complaints to the National Highway Traffic Safety Administration about the issue, according to Reuters. The plaintiffs are asking for an automatic shut-off and damages from the companies. These concerns have come up before, though. Toyota previously faced a lawsuit over a carbon monoxide death after a woman accidentally left her Lexus running. Also earlier this year, GM recalled 64,186 examples of the 2011-2013 Chevrolet Volt because owners weren't shutting them off. The problem resulted in two injuries, and the company released a software update to limit the idling time.

Honda reports $2.3 billion profit despite pandemic

TOKYO — Japanese automaker Honda reported Friday that its profit rose 23% in the last quarter, despite a pandemic that has slammed businesses around the world. Tokyo-based Honda said its July-September profit was 240.9 billion yen ($2.3 billion), up from 196.5 billion yen a year earlier, as the auto market recovered in some parts of the world. Honda said it carried out aggressive cost cuts that involved a “fundamental review” of its operations. The situation was also improving from earlier this year, when lockdowns and other problems related to COVID-19 caused disruptions of some production and an inventory crunch. Quarterly sales slipped to 3.65 trillion yen ($35 billion) from 3.73 trillion yen the same period a year earlier. Honda warned that uncertainty remains amid rising COVID-19 cases. But the company stressed it was managing to cling to profitability. Reflecting that upbeat mood, Honda raised its profit forecast for the fiscal year through March 2021 to 390 billion yen ($3.8 billion) from an earlier projection for 165 billion yen ($1.6 billion). The latest forecast is still lower than the 455.7 billion yen profit Honda booked in the previous fiscal year. Honda sold slightly more vehicles in the quarter through September at 1.25 million vehicles, compared to 1.24 million vehicles in the same period of 2019. But it sold fewer motorcycles at nearly 4.5 million motorcycles, down from nearly 5.1 million. Kohei Takeuchi, a senior Honda manager, said much of the damage to sales likely came from the pandemic, though he hesitated to blame the entire decline on the pandemic. Executive Vice President Seiji Kuraishi told reporters Honda is bullish on shifting its lineup to ecological models to keep up with the global efforts to curb carbon emissions and global warming. Also Friday, Toyota raised its full year fiscal forecasts to a 1.4 trillion yen ($13.5 billion) profit, after reporting results that appear to show a gradual but sure recovery. Its profit fell 11% in the last quarter. Nissan reports financial results next week. Related Video: Earnings/Financials Acura Honda