Fuel Ecoonmy

2021 Chevrolet Tahoe, Suburban nearly twice as fuel efficient as the Nissan Armada

The 2021 Chevrolet Tahoe offers best-in-class fuel economy.

Photo courtesy of Chevrolet

The 2021 Chevrolet Tahoe is the most fuel-efficient full-size SUV in its class and the 2021 Chevrolet Suburban isn't far behind. Further behind are the Ford Expedition, Lincoln Navigator, Nissan Armada, and Infiniti QX80, the two chief rivals of the models.

The best-in-class figures are courtesy of General Motors' 3.0-liter Duramax turbo-dielse engine. That engine is new for the 2021 model year in the Tahoe and Suburban. Rear-wheel drive Tahoes get 21 mpg in the city, 28 mpg on the highway, and 24 mpg combined. Four-wheel drive models get 20 mpg in the city, 26 mpg on the highway, and 22 mpg combined.

2021 Chevrolet Tahoe The 2021 Chevrolet Tahoe has been completed redesigned.Photo courtesy of Chevrolet

Chevy's 2021 Suburban gets 21 mpg in the city, 27 mpg on the highway, and 23 mpg combined when equipped with front-wheel drive. Four-wheel drive Suburbans get 20 mpg in the city, 26 mpg on the highway, and 22 mpg combined when equipped with front-wheel drive.

The diesel power plant is the first diesel engine offered in GM's full-size SUVs since 1999. It first appeared as part of the GM lineup in the 2020 Chevrolet Silverado. In that application it quickly earned accolades for its quiet operating noise and fuel efficiency, as well as its near-immediate delivery of power.

In every application, the Diesel engine is paired with a 10-speed automatic transmission.

The 2021 Tahoe's engine gets 277 horsepower and 460 pound-feet of torque when equipped with the engine. Diesel-powered front-wheel drive models have a maximum towing capacity of up to 8,200 pounds and a max payload of 1,717 pounds. With the same engine under the hood, the 2021 Suburban has a maximum towing capacity of up to 8,000 pounds and a max payload of 1,625 pounds.

2021 Chevrolet Tahoe The 3.0-liter turbo-diesel is a relatively new addition to the GM lineup.Photo courtesy of Chevrolet

"The 3.0L Duramax turbo-diesel brings responsive torque and a smooth driving experience, ideal for those who tow or spend many hours behind the wheel," said John Barta, assistant chief engineer for the 3.0L Duramax. "Not only is the 3.0L Duramax a refined engine, but the total experience benefits from the efforts to deliver enhanced driving dynamics in Tahoe and Suburban through the independent rear suspension and available Magnetic Ride Control and Four-Corner Air Ride Adaptive Suspension."

The 3.0L Duramax turbo-diesel is available on the LS, LT, RST and Premier trims with an MSRP of $995 over the base 5.3L V8 gas engine. It is also available in the High Country trim as a $1,500 MSRP decrease over the standard 6.2L V8 gas engine.

The first customer deliveries of the 2021 Tahoe and Suburban with the available 3.0L Duramax turbo-diesel are expected to begin before the end of the year.

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Chevy confirmed the new Z06 with 670 horsepower.

Chevrolet

After years of speculation, Chevy announced the mid-engine eighth-generation Corvette for the 2020 model year. Almost immediately, a new round of rumors took off around the potential for an even higher performance Z06 model. Chevy finally confirmed the car yesterday with a design and specs that improve on the standard Corvette in almost every way.

2023 Chevrolet Corvette Z06 The new LT6 V8 features a flat-plane crank and an 8,600 rpm redline.Chevrolet

The star of the show is the new 5.5-liter flat-plane crank LT6 V8. The mill churns out an unbelievable 670 horsepower and 460 pound-feet of torque, and can rev all the way out to 8,600 rpm. Power numbers aside, the sky-high redline lets the engine wail and scream in a way that we've not heard outside of Corvette racing cars. The hand-assembled engines are paired with a single technician through the build process and each unit carries a plaque with the builder's name.

To differentiate the Z06 from "normal" Corvettes, Chevy gave the car unique front and rear fascias, 20-inch front/21-inch rear wheels, and a configurable rear spoiler designed to improve high-speed stability. The Z06 is available with lightweight carbon wheels designed to reduce unsprung weight. The car itself is 9.4 centimeters wider than the Corvette Stingray to accommodate larger wheel sizes and incorporate larger cooling air vents on the side.

2023 Chevrolet Corvette Z06 The Z06's interior features many upgrades over the standard car.Chevrolet

As a more track-focused Corvette, the Z06 comes with tech to improve performance and record drives. When in track mode, the Z06's Performance Traction Management system is activated, which offers five levels of torque reduction and brake intervention, and an electronic limited slip differential helps keep the rear planted.

Inside, the Z06 improves on the Stingray's cabin with seven interior color choices, three seat options, six seatbelt designs, and two interior carbon fiber trim packages. Chevy says that the car's interior has a bespoke and upscale feel that sets it apart from the standard Corvette, which itself already had a gorgeous cabin.

2023 Chevrolet Corvette Z06 The Z06 is wider than the Stingray to accommodate larger wheels and bodywork.Chevrolet

The 2023 Chevrolet Corvette Z06 will be built at the automaker's Bowling Green Assembly plant in Kentucky. Chevy will build the cars in both left- and right-hand drive configurations when production kicks off in summer 2022.

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Cadillac will be the first brand with Ultra Cruise

General Motors

Tesla has been in hot water for a while now for shenanigans pulled by owners abusing the automaker's advanced cruise control functions. While the company's Full Self Driving (FSD) tech isn't quite ready for primetime, other automakers are catching up – quickly. Today, General Motors announced Ultra Cruise, its advanced driver assistance tech that promises to allow hands-free driving in 95 percent of driving scenarios.

Ultra Cruise Ultra Cruise will build on Super Cruise functionality.General Motors

GM notes that its goal is to eventually roll the service out to all paved roads in the U.S. and Canada. When it launches, the service will work on over two million miles of roads, which could nearly double as the program expands.

Ultra Cruise will offer a host of automated driving features that build on Super Cruise:

  • Dynamic display system
  • Ability to react to permanent traffic control devices
  • Follow internal navigation routes
  • Maintain headway and follow speed limits
  • Support automatic, on-demand lane changes
  • Support left and right turns
  • Support close object avoidance
  • Support parking in residential driveways

The system uses LiDAR, radar, and cameras to build a 360-degree, three-dimensional picture of the world around it. An additional LiDAR unit is located behind the windshield. GM notes that a big part of the system is its Human Machine Interface (HMI), which communicates with the driver to alert them when they need to take control. Ultra Cruise-equipped vehicles will do this with a head-up display that helps drivers stay focused on the road, and will use the same driver monitoring cameras that are used in Super Cruise.

Ultra Cruise Ultra Cruise will enable hands-free driving in the majority of driving scenarios.General Motors

Ultra Cruise will first be available in Cadillac vehicles starting from 2023. There's no word on pricing or specific vehicle availability at this time.

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