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Here's how Cadillac made its Magnetic Ride Control suspension quicker and smarter

Bugatti makes the world's fastest car, but Cadillac claims it has developed the world's fastest suspension. Its fourth-generation Magnetic Ride Control technology receives hardware and software tweaks to deliver a more comfortable ride and sharper handling. It's offered on some variants of the CT4, CT5 and the Escalade. Introduced in 2002 on the Seville STS, this self-adjusting suspension is not as complicated as it might sound. It relies primarily on electromagnets that emit a magnetic field, and a magnetorheological fluid whose viscosity changes depending on the strength of the magnetic force. Sensors scan the road up to 1,000 times per second and send the information they gather to the electromagnets, which then alter their magnetic field as needed to modify the fluid's viscosity. The fluid is in the shocks, so making it thicker returns a firmer ride, and vice versa. In simpler terms, Magnetic Ride Control leverages chemistry and physics to make the ride sporty, comfortable, or somewhere in between -- all in the blink of an eye. By reacting to the changing magnetic field, the fluid-filled shocks filter out road imperfections and maximize tire contact with the road to deliver more precise handling. Cadillac began developing the fourth-generation system by improving the hardware. The in-wheel accelerometers are more accurate than before, the inertial measurement unit is more precise, and the damper fluid formula was changed for quicker response times and a smoother ride. Engineers then turned their attention to the system's software. They notably gave the sensors the ability to process a wider selection of input and output signals, which translates to a wider spread between comfort and sport. And, they made the response time up to 45-percent quicker. All told, the fourth-generation Magnetic Ride Control technology performs better under heavy braking and hard cornering, it delivers more consistent performance, and it reads the road more accurately. Cadillac proudly notes these are the most comprehensive updates it has made to the system in nearly two decades. Magnetic Ride Control comes standard on the 2021 CT4-V and the 2021 CT5-V, and it's bundled into the CT5's V Performance package, which also includes a mechanical limited-slip differential. It's also standard on the Sport and Platinum variants of the 2021 Escalade, and it's part of the Premium Luxury trim's Performance package.

VW, Jeep and Cadillac top list of most-tattooed car brands

Most car enthusiasts own at least one piece of gear with their favorite brand's logo on it. It can be a T-shirt, a pen, a hat, or a garage sign, for example. It takes a much greater degree of dedication to get a car-themed tattoo, and a study suggests this sky-scraping level of obsession is most often found in Volkswagen, Jeep, and Cadillac fans. Compare the Market analyzed Instagram hashtags and posts to compile a list of the most commonly tattooed brands. Volkswagen came out on top, with 5,507 posts; note that anything related to the Wolfsburg-based brand earns it a point, whether it's a logo, a cutaway diagram of the Beetle's air-cooled flat-four engine, or a Touareg V10's firing order. Jeep finished second with 2,139 posts, followed by Cadillac at 1,775 posts. Surprisingly, the fourth spot is occupied by Pontiac, which appeared in 1,609 posts in spite of the fact that it hasn't built a car since 2010. Holden appears near the very bottom of the top-20 chart, ahead of Lamborghini, and its result might be influenced by the fact that General Motors announced plans to shutter it earlier in 2020. BMW and Mercedes-Benz are in sixth and 12th place, respectively. Alfa Romeo doesn't appear in the top 20, though its decades-old Quadrifoglio logo (pictured) can easily be mistaken for a symbol of Irish luck. Searching for posts that show a tattoo of a specific model uncovered even bigger surprises. According to the same study, the most-tattoed nameplate is the Chevrolet Impala, which appears in 823 posts. Odds are the earlier generations, like Dr. Dre's famous six-four, are more often tattooed than the final-generation model, which unceremoniously went out of production in February 2020 without a direct replacement waiting in the wings. Second place goes to the DeLorean DMC-12, which has transcended its status as an esoteric fiasco on wheels thanks to its role as a time machine in "Back to the Future." It appeared in 800 posts. Chevrolet's Corvette takes a distant third with 180 posts, followed by the Volkswagen Beetle (147 posts) and the Mini Cooper (116 posts). All told, car-themed tattoos are relatively rare. To put some of the aforementioned numbers into context, searching Instagram for the hashtag Volkswagen yields over 15 million posts, while the hashtag tattoo appears in over three million publications. Auto News Cadillac Chevrolet Jeep

GM 8-speed transmission lawsuit granted class action certification

A story on Autoblog about potentially faulty 8-speed automatic transmissions from General Motors in 2019 has, as of the day this was published, 166 comments, mostly from owners of cars and trucks who say they are experiencing "a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." At the time, lawyers were seeking statewide classes in at least six states. As of today, the Detroit Free Press reports that a judge has granted class action status to a lawsuit brought by 39 plaintiffs across 26 states covering the transmission issue. The lawsuit specifically applies to vehicles that are equipped with GM's 8L90 or 8L45 8-speed automatic transmissions made between 2015 and March 1, 2019. Both of these transmissions are similar units, the 8L45 being slightly lighter version used in fewer vehicles than the beefier 8L90, and are designed for front-engine, rear- or all-wheel drive applications. The lawsuit alleges that the erratic transmission behavior makes some vehicles unsafe to drive. Ted Leopold, partner at Cohen Milstein and the court-appointed lead counsel for the case, said in a statement, "General Motors knowingly sold over 800,000 eight-speed transmission vehicles, which they knew to be defective for years, and yet made the business decision not to tell its customers before purchase." He added, "Dealers were directed to tell the customers that harsh shifts were ‘normal' or ‘characteristic.Â’ Such decision making is both highly irresponsible and emblematic of what GM believes it can get away with." The vehicles included in the court order with potentially faulty transmissions includes: 2015-2019 Chevrolet Silverado 2017-2019 Chevrolet Colorado 2015-2019 Chevrolet Corvette 2016-2019 Chevrolet Camaro 2015-2019 Cadillac Escalade and Escalade ESV 2016-2019 Cadillac ATS, ATS-V, CTS, CT6, and CTS-V 2015-2019 GMC Sierra, Yukon, Yukon XL, and Yukon Denali XL 2017-2019 GMC Canyon Some additional details of the lawsuit can be found at the Cohen Milstein site, including claims that "since 2015, GM has issued thirteen versions of a “technical service bulletin,” or “TSB,” related to this shifting issue alone." The statement from Cohen Milstein says that a "second action regarding GM vehicles with 8L transmissions is also underway in Battle v. General Motors, LLC, 2:22-cv-108783.