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Chevy preparing new Camaro ZL1 Convertible?

It's a given that when an automaker introduces a new performance model, it's only a matter of time before an even hotter variant arrives. The Ford Mustang begets the Shelby GT350 and the Dodge Challenger R/T spawns the SRT 392 and Hellcat. And for Chevrolet, that progression sees the Camaro SS evolve into the ZL1. That's probably what our spies have captured here. The convertible variant of GM's most powerful Camaro is betrayed not by its big, black wheels or quad exhaust tips – both of those items have been fitted to the far tamer 1LE in the past – but by its brakes. To put it simply, they're enormous. The old ZL1 had 14.6-inch rotors in front and 14.4-inchers in the back, with Brembo-branded six-piston calipers up front and four-piston binders at the rear. While the overall size of the calipers doesn't appear to have changed much, it looks like the rotors – especially in front – seem to take up a larger space inside the front wheels than in last year's model. Perhaps Chevy moved to a straight 15-inch rotor? It's difficult to discern any more from these images, though. Chevy did a fine job with the camouflage, making it difficult to pick out ZL1-specific body parts. From the rear spoiler to the front fascia to the side sills, each body piece looks like it's the same as the standard Camaro or is just completely obscured. If this is a Camaro ZL1, it seems like Chevy may have just stuffed the vital organs inside the body of more pedestrian droptop. According to our spies, it's unlikely that Chevy will mix things up under the hood. Expect the 6.2-liter, supercharged V8 from the Corvette Z06 and Cadillac CTS-V to move the ZL1 from 550 horsepower to around 640 ponies when it debuts for model year 2017. A six-speed manual transmission will be standard, while the Camaro's big brother will probably donate its eight-speed automatic. Related Video: Image Credit: Brian Williams / SpiedBilde Spy Photos Chevrolet Convertible Performance chevy camaro zl1

NHTSA investigating nearly 750,000 GM models over non-deploying airbags

Nearly 750,000 vehicles built by Chevrolet, GMC, and Cadillac are the subject of a National Highway Traffic Safety Administration (NHTSA) investigation due to non-deploying driver-side airbags. While the investigation is ongoing, the agency believes the issue is likely due to rust particles that form on the inflator's connection terminal interface. The list of nameplates included in the investigation includes Chevrolet's Silverado, Tahoe, and Suburban, GMC's Sierra, Yukon, and Yukon XL, plus Cadillac's Escalade, Escalade ESV, CT4, CT5, and XT4. All of the potentially affected vehicles are 2020 or 2021 models, according to a bulletin published on the NHTSA's website. Investigators launched the probe in April 2021 after 15 consumers reported airbag-related issues, including nine who said an airbag malfunction light appeared in the instrument cluster. More alarmingly, the NHTSA is aware of six accidents that caused significant damage to the car's front end yet didn't trigger the driver's airbag. It adds that there are no fatalities linked to the issue, but there are six crashes and eight injuries reportedly blamed on it. No evidence suggests this problem is related to the millions of potentially deadly Takata inflators recalled over the past few years. General Motors is aware of the defect. It sent a technical service bulletin (TSB) to its dealers in March 2021 to address the aforementioned warning light. The note explains the issue is due to "rust particles in the connection terminal interface of the driver's airbag inflator." The company hasn't issued a safety recall yet, however. Whether it will partially depends on the NHTSA's findings. It's currently looking into the scope and the severity of the problem, and it wants to understand its implications on driver safety. Investigators will decide whether General Motors needs to recall the 749,312 cars that are part of the probe when they close their investigation. General Motors has already spent a significant amount of money replacing defective airbag-related parts in its cars. In November 2020, it was ordered by the American government to recall nearly 6 million pickup trucks and SUVs equipped with potentially dangerous Takata airbag inflators. It repeatedly argued that testing proved the inflators were safe, and it petitioned the agency four times starting in 2016 to avoid a recall, which cost an estimated $1.2 billion (about a third of its net income in 2020).

GM removes start/stop from full-size trucks and SUVs with V8 engines

GM is removing start/stop technology from a number of its popular full-size SUVs due to the ongoing chip shortage. This follows the removal of cylinder deactivation technology from some of its trucks, which was also due to the chip shortage. GM Authority first reported the news, but we’ve just confirmed everything with a GM spokesperson.  The following 2021 model year vehicles will be affected: Chevy Tahoe, Chevy Suburban, GMC Yukon, Cadillac Escalade, Chevrolet Silverado 1500 and GMC Sierra 1500. Only versions of those vehicles built with the 5.3-liter V8 or 6.2-liter V8 and mated to the 10-speed automatic will have the tech removed from them. Only vehicles manufactured on or after June 7 will be affected. “By taking this measure, it will enable us to continue production of our high-demand full-size SUV and pickups as the industry continues to rebound and strengthen,” GM said in a statement. Those who ultimately buy one of these vehicles without start/stop technology will receive a $50 discount off MSRP for their troubles. Losing this fuel-saving tech could be a big negative for some, but we know many folks turn it off anyway. Not having to press the button to deactivate start/stop every time could actually be a positive if youÂ’re part of the camp who does that already. 2021 Cadillac Escalade Sport Platinum View 27 Photos On the downside, GM says “most of the affected vehicles will experience a minor reduction in fuel economy.” We donÂ’t have revised window stickers in hand to know how each model will be affected, but any 1 mpg reduction will be rather impactful for vehicles rated as low as these trucks already are. Any reduction will be seen in the city mpg rating, so take the kind of driving youÂ’re going to be doing into account before purchasing. When it comes to greenhouse gas compliance rules, GM says it doesnÂ’t foresee this impacting the companyÂ’s average fleet score. It also intends to begin adding start/stop back to these models as soon as possible, but there will be no retrofit effort made to fit the tech to vehicles already built without it. “Our supply chain organization continues to make strides working with our supply base to mitigate the near-term impacts of the semiconductor situation,” GMÂ’s statement reads. “GM continues to leverage every available semiconductor to build and ship our most popular and in-demand products, including our highly profitable full-size trucks and SUVs for our customers.