The Chevrolet Express first went on sale way back in 1995, and while it has been updated over the years, it still rides on the same platform. Despite its ancient architecture, a next-generation version of the Express still doesn't appear to be on Chevrolet's agenda since sales are still strong. According to Chevrolet, sales of the Express increased in 2019 by 12 percent compared to the previous year across the Passenger, Cargo and Cutaway configurations.

For the 2021 model year, Chevrolet has updated the Express and Low Cab Forward with a new 6.6-liter V8, which is the same engine that powers the new 2020 Chevrolet Silverado 2500 HD and 3500 HD.

In the 2021 Express, this direct-injected engine is rated at 401 horsepower and 464 lb-ft of torque, up by 17 percent more horsepower and 24 percent more peak torque than the 6.0-liter V8. In the Low Cab Forward, the 6.6 liter V8 produces 350 horsepower and 425 lb-ft of torque, which is nearly 18 percent more horsepower and 14 percent more peak torque than the outgoing 6.0-liter unit. According to Chevrolet, around 70 percent of current Express owners selected the 6.0-liter V8 option, and the automaker expects the new 6.6-Iiter engine to be even more popular.

In addition, Chevrolet has updated the Silverado 4500 HD, 5500 HD and 6500 HD chassis cab trucks with increased performance and flexibility for upfitting. The maximum gross combined weight rating is now up to 37,000 pounds, offering a 23 percent increase in hauling capability, while a new mechanical locking rear axle improves traction by automatically locking when a rear tire slips.

There are also longer axle-to-end-of-frame options for the two shortest wheelbases enabling longer upfit bodies and increased upfit flexibility, and new extended mirror arms offering better visibility on wider and longer upfit configurations, new left-hand power take-off capability, and an auxiliary switch bank available with six additional upfit switches located in the headliner.