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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.

We drive the Acura TLX-GT racecar

Don't break the car. As you can tell from the video, that's the theme of the day at Gingerman Raceway in South Haven, MI. After two short lapping sessions in the Acura TLX-GT fear gave way to familiarity, and a second theme emerged: this is awesome. The anxiety was appropriate. There are only two TLX-GTs in the world, and both were at Gingerman that day. A mishap would potentially put either Ryan Eversly and Peter Cunningham out of contention for the subsequent Pirelli World Challenge race. I did not want to be that guy. But back to the awesome part. The TLX-GT is barely TLX, but more Acura that you might expect. The wheelbase, roof, and doors are all stock dimensions, although all the bodywork is carbon fiber. Out go the front MacPherson struts, in goes a special double-wishbone suspension. All-wheel drive comes from an XTRAC six-speed sequential transmission originally developed for Dakar Rally vehicles. The side mirrors are stock. Under the hood lies a 3.5-liter twin-turbo V6 with a stock block, head, crank, and throttle body. "Under the hood" is a generous term, though, because half of the engine sits inside the cabin. The front end of the block is aft of the front axle - the rest of the hood is taken up with radiators and hoses. To service the turbochargers, the RealTime mechanics remove the top of the dashboard. The front-mid engine location pushes the driver's seat back to the B-pillar, so you sit like Hightower from Police Academy. Only with less visibility. This does not calm the nerves. Nor does the din of 600 or so unmuffled horsepower. My first laps were understandably timid. But the TLX-GT is actually easy to drive. You get used to the low, rearward seating position almost immediately. Once rolling you don't need the clutch for shifts - just bang the right and left paddles to go up and down. I even became accustomed to the acceleration. At more than 3,000 pounds curb weigh the TLX-GT is quick, but not as explosive as cars like the Chevrolet Corvette Z06. Where the TLX-GT blows away road cars is in grip and braking, neither of which I fully exploited. The brake pedal is so hard you feel like you're standing on it just to get the pads to bite. Once engaged, they're like an endless well of deceleration, with ABS somewhere down at the bottom of the abyss. Second lapping session over, car returned intact and adrenaline high in full effect. I had the uncontrollable urge to get back behind the wheel. I mean, I barely had time to get up to speed.

2020 Chevy Corvette Stingray vs the world: How it compares on paper

The 2020 Chevy Corvette Stingray in its base form offers an astonishing amount of performance for the money. In fact, so impressive is the car's spec sheet that the Corvette kind of exists in two different competitive sets: one of cars priced similarly, and another with cars of similar performance and reputation. To get a feel for how it handles each of these segments, we've compiled specifications for those two sets of players. You can find the first set below, which looks at cars of roughly the same price point. Following that is a bit of analysis, and then there's a chart of cars with similar performance and reputation. And that chart will also have some analysis. Though final pricing for the Corvette hasn't been announced yet, we know the Corvette will start at less than $60,000. And as far as pricing goes, its closest competitor is the Porsche 718 Cayman, which also starts at just under $60,000. Both are mid-engined and rear-drive, but the Corvette offers an extra 195 horsepower and 190 pound-feet of torque. The Cayman does boast a curb weight of right around 3,000 pounds, so it weighs a few hundred pounds less than the Corvette, but it's likely not enough to make up for the power deficit. The Corvette's sub-3.0-second 0-60 time bears this out against the Cayman's best 4.5-second run. Impressively, though, the Cayman has more cargo space than the Corvette in a package that's nearly 10 inches shorter. The Cayman also still offers a manual option for those that prefer self-shifting. The 2020 Toyota Supra is on the cheap end of this sports car class, just crossing $50,000. It also boasts more power than the Cayman, though it's still down by 160 ponies and 105 pound-feet of torque to the C8. It's also about as roomy as the Corvette, despite being about the same size as the Cayman. Cargo space is a bit tighter. Its driving characteristics will likely differ, too as the Supra sits on a front-engine platform. It might even feel closer to a C7 Corvette in some ways. The other mid-engine entry in this price range is the 2019 Alfa Romeo 4C Spider. Its small 1.7-liter turbo inline-4 only makes 237 horsepower and 258 pound-feet of torque, but it's also far and away the lightest of this group at 2,487 pounds. That's roughly 1,000 pounds lighter than the Corvette. It isn't as fast as the Corvette in a straight line, but that lightness surely pays dividends in cornering and braking.