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 TahoeThe 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 TahoeThe 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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The Denali Ultimate trim is new for 2023.

GMC

The GMC Yukon has always been a luxurious family hauler with beefy capability, but it moved even more upmarket in recent years with added tech and upscale interior materials. GMC just announced an even cushier version of the SUV for the 2023 model year. The Yukon Ultimate Denali gets unique styling touches and upgrades that take the already plush SUV to another level.

2023 GMC Yukon Denali Ultimate22-inch wheels are standard GMC

The Denali Ultimate gets exclusive upgrades over other trims that include 22-inch wheels and chrome accents outside. The full-size SUV just got a complete redesign for 2021, which brought updated boxy styling, and a sleek look, so there are no additional exterior changes for 2023.

GMC offers three engines in the standard Yukon, but only two make it into the Ultimate. The standard powertrain includes a 6.2-liter V8 that produces 420 horsepower. A 3.0-liter turbodiesel is also available that makes 277 horsepower and a whopping 460 pound-feet of torque. A ten-speed automatic transmission is standard for all engines, and four-wheel drive is available.

Inside, the Ultimate comes with Alpine Umber full-grain leather upholstery with 16-way power front seats and massaging. Trim-exclusive contrast stitching and aluminum trim accent the space, and the top model gets an 18-speaker Bose audio system with stainless steel speaker grilles.

2023 GMC Yukon Denali UltimateGrained leather upholstery and upscale interior finishes are standard. GMC

A 10.2-inch infotainment touchscreen comes standard, and offers Google services built in. Wireless Apple CarPlay and Android Auto are also standard, along with wireless phone charging. A Wi-Fi hotspot and Amazon Alexa functionality are available. GMC also offers Super Cruise hands-free driving system in the Denali Ultimate.

GMC hasn’t detailed pricing for the new SUV yet, but we expect it to start at a premium over the standard Denali, which starts at just over $70,000.

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The Z06 isn't on sale yet, but it's already raising money for charities.

Chevrolet

Just a couple years ago, the Chevrolet Corvette got a major overhaul that completely changed its design, personality, and performance. The car moved to a mid-engine layout for the first time, and its V8 produces thundering performance at a reasonable price. As it has always done with the Corvette, Chevy's laying out special editions for the car, and one of the first in the new generation will be the 2023 Corvette Z06. An early Z06 sold at a Barrett-Jackson auction this weekend to raise money for charity, and the final dollar amount crested the $1 million mark.

2023 Chevrolet Corvette Z06The car raised $1 million at the Palm Beach Auction. Chevrolet

The car crossed the block at the Palm Beach Auction, which took place on April 9. It's the first production model of the car, which builds on the mid-engine eighth-generation Corvette. It's powered by a 670-horsepower 5.5-liter flat plane-crank V8, which sends its power to the rear wheels through an eight-speed dual-clutch automatic transmission. The engine revs much higher than a standard V8 and features a distinct sound. Chevy says the Z06's engine offers the most horsepower of any naturally aspirated V8 on sale.

2023 Chevrolet Corvette Z06Rick Hendrick was the winning bidder for the car. 2023 Chevrolet Corvette Z06

The car's $1 million price tag raised money for the Thurgood Marshall College Fund. The organization supports training of educators at Historically Black Colleges and Universities (HBCU) and Predominantly Black Institutions (PBI). This auction, together with the first retail version of the car auctioned earlier this year, brings the Corvette's total charity haul to $4.6 million in 2022.

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