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Big SUVs are big business for General Motors, and the Chevy Tahoe and Suburban are getting even bigger thanks to a comprehensive redesign for 2021. These full-size SUVs also benefit from a new independent rear suspension (IRS), which is a big deal because it makes for bigger cargo space and bigger third-row seats (okay, we'll stop now). The 5.3-liter and 6.2-liter V-8 engines are upgraded for this new generation and there is a newly available turbo-diesel 3.0-liter inline-six engine—the only one you'll find in the full-size SUV segment.
Compared to their predecessors, the new Tahoe and Suburban also get a wheelbase stretch of 4.9 inches for the Tahoe and 4.1 inches for the Suburban. The difference in size between the two shrinks somewhat, as the new Suburban is 15 inches longer overall than the new Tahoe and the old Suburban was a whole 20.4 inches longer than the old Tahoe.
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