2003 Chevrolet Corvette 50th Anniversary Edition on 2040-cars
Gansevoort, New York, United States
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Yes, this Vette is positively magnetic, but more than you realize. All 50th-Anniversary models-of which as many as 10,000 will be built if demanded-along with all 2003 hatches and convertibles optioned with the F55 Magnetic Selective Ride Control suspension, will feature a novel variable-damper-rate technology that puts the "shock" in shock absorber (a similar system went into production on the Cadillac STS a few months ago).
The dampers are filled not with standard oil but with magnetorheological (MR) fluid. This is a synthetic oil with millions of tiny iron balls suspended in it. These iron balls have a proprietary coating to make them less abrasive and help them float evenly within the shock fluid.
More important, they react to a magnetic field generated by an electric coil on the shock piston, thereby changing the fluid's viscosity. Imagine changing your shock fluid from 5W to 100W by simply varying the current in the coil.
"It can go from no damping to solid almost instantly," says Tadge Juechter, assistant chief engineer for Corvette. "The only question is, do you have the computational power to keep up?"
A dual-processor computer adjusts the current about 1000 times per second based on wheel travel and speed, vehicle speed, steering-wheel angle, lateral acceleration, brake application, and also temperature. At 60 mph, that's an adjustment with every inch of the Corvette's forward travel. The goal of these adjustments is to keep the Corvette on a smooth, even keel while maximizing the contact of the tires with the pavement.
The current C5 is already quite capable in those departments, but compared with the base setup and the Z51 option, this F55 suspension represents a great leap forward. Perhaps the greatest improvement involves travel over large bumps and dips, where the conventional suspensions hit the bump stops. In contrast, the F55 system senses the magnitude of the bump or dip as it is deflecting the tire and immediately adjusts the appropriate shock to stay within the available wheel travel. As a result, a humpbacked railroad grade crossing over which a Z51 gets airborne at 80 mph becomes nothing but a medium bump with the F55.
Those who insist on maximum road feel can rotate a console switch from Tour to Sport mode. This shifts the programming so the car's body tries to follow the road surface more closely rather than remain stable and tranquil. Based on our brief drive, this mode will be useful primarily when hot-lapping at a proper racetrack.
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2022 Chevy Silverado ZR2 vs Ford F-150 Raptor and Ram 1500 TRX Spec Comparison
Thu, Sep 9 2021The 2022 Chevy Silverado refresh brings a new top dog off-road Chevy, the Silverado ZR2. It has the biggest V8 available, flashy looks, trick suspension and other off-road goodies. And naturally, that means people will be comparing it with the other top-rung off-road trucks, the Ford F-150 Raptor and the Ram 1500 TRX. As such, we've assembled the specifications available so far to see how the three super trucks compare. Having just been revealed, there are a few things we don't know about the ZR2, such as fuel economy and some other suspension details, but we know quite a lot. And from what we know, the ZR2 has some interesting positives and negatives compared to the other trucks. First, it's pretty clear that the ZR2 isn't as extreme as the Raptor and TRX. We wouldn't be surprised if Chevrolet insists they aren't direct competitors. Specifically it has the least power and torque by a fair margin, the smallest tires and the least ground clearance. Still, it's not completely fighting with an arm tied behind its back. It's the narrowest by a significant margin, which is good for tighter trails. It also has the best towing and payload capacity, and the approach, break-over and departure angles are quite competitive despite the "little" tires. It's also the only one to boast a locking front differential in addition to a rear locker. The Raptor can be had with a limited-slip front differential, and the TRX only gets an open front differential. Check out all the specific numbers in the chart below, as well as additional stories on the trucks featured below. Other reviews and deep dives about the new Silverado, F-150 Raptor and Ram 1500 TRX 2022 Chevy Silverado 1500 Reveal In addition to the new ZR2, the Silverado line also gets new interiors, an upgraded four-cylinder and other updates. Â 2021 Ram 1500 TRX First Drive Review Our review of the Raptor's chief competitor, the mighty TRX. That just sounds like we're talking about Jurassic Park. Â 2021 Ram TRX Suspension Deep Dive and RTI ramp test Follow along with engineer Dan Edmunds as he takes you under the TRX and explains everything there is to know about its suspension -- and how it's able to do what it does.
2015 Chevrolet SS Review [w/video]
Mon, Jul 27 2015The Chevrolet SS is one of the best cars no one's buying. It's a Bowtie-badged version of the Australian Holden Commodore with a 6.2-liter LS3 V8 under the hood. It's got a six-speed manual transmission, General Motors' sophisticated Magnetic Ride Control suspension, and rear-wheel drive. It's a fullsize sedan that comes with every possible amenity you could want. And it's less than $50,000. Chevrolet sold 2,479 SS sedans in 2014. That means it was outsold by every other vehicle the automaker offers, even the police fleet-only Caprice. (I'm only talking about cars that were on sale for the full 2014 calendar year, of course.) The aforementioned manual transmission and MRC suspension were added for 2015, but it's not clear if that's helping. The SS is down 7.7 percent through June of this year, compared to 2014's numbers. But hey, at least it's finally outselling the Caprice. What a damn shame. Granted, GM only planned to sell a few thousand of these each year, but as enthusiasts, this a car we should be gobbling up. It's the closest we'll get to a four-door Corvette, and with the 2015 model year updates, that statement is more true than ever. People often mistook the SS for a Malibu. "Is that a rental car?" Yikes. Aside from the manual gearbox and magnetorheological suspension, the SS is largely unchanged through its year and a half of sales. But that's no bad thing – we were thoroughly impressed with the SS when we first tested it at the end of 2013. Outside, the SS looks the same, which is a bummer. It is not an attractive car, and the chrome brightwork on the side vents and wheels doesn't help. That said, the sedate styling puts it under the radar – more so than competitors like a Dodge Charger 392, anyway. But maybe it's too under the radar. Even in the new, "Some Like It Hot Red" color (yes, really), photographer Drew Phillips reports that people often mistook the SS for a Malibu. "Is that a rental car?" Yikes. Exterior styling is our only gripe with the SS. Moving inside, there's a lot to like. This is easily one of Chevy's nicest, well thought-out interiors (thanks, Holden), with premium materials and tons of equipment. The Chevy MyLink infotainment system carries over, and now features 4G LTE and wifi connectivity. The touchscreen is a bit slow to respond, but otherwise, it's bright, well organized, and packed with functionality. This is easily one of Chevy's nicest, well thought-out interiors.
GM may have teased a whole group of electric vehicles
Tue, Jan 12 2021During GM's big CES press conference, the automaker highlighted a number of its upcoming electric car-related projects from delivery vans to the upcoming flagship Cadillac Celestiq. In the middle of it all, a collection of mystery cars sat in the background behind speakers. They were in the dark, lit only with their running lights, and while it's possible they're just generic filler cars or concepts, we think they could be future products. Our best shot of the cars together is shown above, and we can pretty easily identify three of the vehicles. In the center is obviously the GMC Hummer EV. On either side of it are Cadillacs. To the left seems to be the Lyriq crossover, and to the right is the Celestiq sedan. Two of these cars have production dates, and the third has been confirmed for eventual production, just without timing. This is why we think the rest of the cars are upcoming models. The next most easily identified car is on the near right behind the Cadillac Celestiq. It very clearly has a Chevy bowtie illuminated in the running lights. And looking closely, it appears to be a pickup truck. It's difficult to make out anything more than that. The nose does look a bit more rounded and swept back than the brick-like designs of the Silverado truck line. That also squares with what seemed to be the upcoming truck that appeared in the background of yet another GM presentation. GM previously said this electric Chevy truck will be a full-size model with up to 400 miles of range. That leaves us with three more mysterious models. Over to the left behind the Cadillac Lyriq are what appear to be a pair of crossovers. The one on the far left looks low, curvy, and possibly with a fastback roof. The one on the right is taller, boxier, and probably more of a full-size people hauler. It's hard to say much more beyond that. They could be new electric Buicks, which would fit in nicely with that brand's crossover portfolio, and would likely be highly successful in China, where Buicks, crossovers and electric cars are all rather hot commodities. As for the mystery car on the far right, it's quite a puzzle. We can at least rule out Buick and Cadillac, and GMC since it's definitely a car, and a rather small one compared with the other cars on display. That leaves Chevy, and possibly the autonomous division Cruise. We're leaning toward it being a Chevy, since the first Cruise vehicle is going to be a boxy pod of sorts.

