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2021 Chevy Silverado, GMC Sierra fuel economy to go down due to global chip shortage

Production of the 2021 Chevy Silverado and 2021 GMC Sierra is continuing, but the global semiconductor chip shortage is resulting in a mid-year change. Or rather, an omission.  Basically, the availability of cylinder deactivation for the 5.3-liter V8 will be significantly reduced, resulting in a reduction of 1 mpg combined for affected models. This applies whether that engine has the six- or eight-speed automatic, as well as to both the regular Active Fuel Management and the more advanced Dynamic Fuel Management cylinder deactivation systems. DFM does remain with the pairing of 5.3-liter V8 and 10-speed automatic that comes standard on the LT Trail Boss and High Country. "Due to the micro controller shortage, the components that control AFM/DFM in the engine control module (ECM) have been removed," GM spokesperson Michelle Malcho told Autoblog. She also indicated that the engines will still have the AFM/DFM hardware in place, but that GM will not allow activation of the systems in the future with an ECM change.  Malcho also confirmed to Autoblog that the Silverado and Sierra's other engines will continue to have AFM and DFM, including the 2.7-liter turbo inline-four, 4.3-liter V6 and 6.2-liter V8. In an earlier statement to Reuters, she declined to say the volume of vehicles affected. "By taking this measure, we are better able to meet the strong customer and dealer demand for our full-size trucks as the industry continues to rebound and strengthen," Malcho wrote Reuters in an email. The change runs through the 2021 model year, she said. Malcho told Reuters it would not have a major impact on the Detroit automaker's U.S. corporate average fuel economy (CAFE) numbers. "We routinely monitor our fleet for compliance in the U.S. and Canada, and we balance our portfolio in a way that enables us to manage unforeseeable circumstances like this without compromising our overall (greenhouse gas) and fuel economy compliance," she said. GM's fleetwide fuel economy in the 2018 model year was 22.5 miles per gallon and was projected to rise to 22.8 mpg for 2019, according to a report by the Environmental Protection Agency. To meet federal CAFE requirements, automakers like GM often use credits from either earlier years where they faced less stringent rules and performed better than the requirements or buy credits from other automakers. GM said last month the chip shortage could shave up to $2 billion from this year's earnings.

What if the mid-engine Corvette is really a Cadillac?

Call me crazy, but I'm not convinced the mid-engine Corvette is the next Corvette. The rumor is strong, yes. And, contrary to some of the comments on our site, Car and Driver - leader of the mid-engine Corvette speculation brigade - has a pretty good record predicting future models. But it's another comment that got me thinking: or maybe it's a Cadillac. There is clearly something mid-engine going on at GM, and I think it makes sense for the car to be a Cadillac. First off, check out how sweet the 2002 Cadillac Cien concept car still looks in the photo above. Second, there are too many holes in the mid-engine Corvette theory. There are too many holes in the mid-engine Corvette theory. The C7 is relatively young in Corvette years, starting production almost three years ago as a 2014 model. Showing a 2019 model at the 2018 North American International Auto Show would kill sales of a strong-selling car before its time. Not to mention it would only mean a short run for the Grand Sport, which was the best-selling version of the previous generation. More stuff doesn't add up. Mid-engine cars are, in general, more expensive. Moving the Vette upmarket leaves a void that the Camaro does not fill. There's not much overlap between Camaro and Corvette customers. Corvette owners are older and enjoy features like a big trunk that holds golf clubs. Mid-engine means less trunk space and alienating a happy, loyal buyer. Also, more than 60 years of history. The Corvette is an icon along the likes of the Porsche 911 and Ford Mustang. I'm not sure the car-buying public wants a Corvette that abandons all previous conventions. And big changes bring uncertainty - I don't think GM would make such a risky bet. Chevrolet could build a mid-engine ZR1, you might say, and keep the other Corvettes front-engine. Yes they could, and it would cost a ton of money. And they still need to fund development of that front-engine car. I highly doubt the corporate accountants would go for that. But a Cadillac? Totally. Cadillac is in the middle of a brand repositioning. GM is throwing money at this effort. A mid-engine halo car is the just the splash the brand needs to shake off the ghosts of Fleetwoods past. And it's already in Cadillac President Johan De Nysschen's playbook. He was in charge of Audi's North America arm when the R8 came out. A Caddy sports car priced above $100,000 isn't that unreasonable when you can already price a CTS-V in that range.

Fernando Alonso fails to qualify as Pagenaud takes Indy pole

Former Formula One world champion Fernando Alonso narrowly failed to qualify for the Indianapolis 500 on Sunday as France's Simon Pagenaud took pole position for the May 26 race. Kyle Kaiser beat out Alonso for the final spot in the 33-car field when he finished third, one spot ahead of the Spaniard, in a six-car shootout that determined the Indy 500's last row. The 23-year-old Kaiser, the last driver to take the track, averaged 227.372 mph for his four laps, a mere 0.019 mph ahead of Alonso's 227.353 mph average in the McLaren-prepared Chevrolet. "We never surrendered. We kept trying," Alonso, 37, told reporters after a tough week at the famed speedway. The Spaniard crashed his Chevrolet in practice on Wednesday and missed nearly two full days of practice while a back-up car was prepared. Then he tried five times on Saturday to qualify, puncturing a tire on the first attempt. Alonso had a completely new set up for Sunday's shootout but could not get the speed he needed to qualify. "I think the car felt better today than what we had yesterday. (So I am) happy with things we tried," he told reporters before learning he had not qualified. Pagenaud had a four-lap average speed of 229.992 mph to become the first Frenchman to take the pole since Rene Thomas in 1919. "It's just amazing," Pagenaud, who last week won the IndyCar Grand Prix on the track's road course, told NBC Sports. "Obviously last week was amazing, but this is even more special." He will be joined by Ed Carpenter (229.889) and Spencer Pigot (229.826) on the front row. But the Cinderella story belonged to Kaiser, the 33rd qualifier. "I don't think I can wrap my mind around what we just did," he said after bumping Alonso from the field. "This is all the credit to the team. They've been working non-stop trying to get this car ready for us and they did everything that we needed to get into this field." (Reporting by Gene Cherry in Raleigh, North Carolina; Editing by Ken Ferris)Related Video: Motorsports Chevrolet McLaren Racing Vehicles F1 IndyCar