2026 Chevrolet Suburban High Country vs 2026 INFINITI QX80 AUTOGRAPH
$25,100 less and 15.1″ longer vs 30 more hp and 56 more lb-ft torque. That is the real fork. Key numbers: $25,100 price gap, 420 vs 450 hp, 16 vs 17 MPG.
The Suburban High Country leads on $25,100 less, 15.1″ longer. The QX80 AUTOGRAPH leads on 30 more hp, 56 more lb-ft torque. The spec table compares 7 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 7 specifications.
Full Specification Comparison
Specifications and pricing reflect available data as of early 2026 and may not match current manufacturer figures. Always confirm details with an authorized dealer before making a purchase decision.
| Spec | 2026 Chevrolet Suburban High Country | 2026 INFINITI QX80 AUTOGRAPH |
|---|---|---|
| Pricing | ||
| MSRP | $86,400 | $111,500 |
| Powertrain | ||
| Engine | 6.2L V8 | 3.5L V6 Turbo |
| Horsepower | 420 hp | 450 hp |
| Torque | 460 lb-ft | 516 lb-ft |
| Transmission | 10-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain | 4WD | 4WD |
| Fuel Economy | ||
| City MPG | 14 | 16 |
| Highway MPG | 18 | 19 |
| Combined MPG | 16 | 17 |
| Fuel Tank | 28.0 gal | 23.6 gal |
| Annual Fuel Cost (EPA) | $3,600/yr | $3,400/yr |
| Dimensions | ||
| Curb Weight | 6,051 lbs | 6,205 lbs |
| Wheelbase | 134.1" | 121.1" |
| Length | 226.3" | 211.2" |
| Width | 81.1" | 83.3" |
| Height | 76.2" | 78.0" |
| Safety | ||
| NHTSA Overall | 5/5 stars | No published data |
| IIHS Award | No published data | TSP+ |
| Warranty | ||
| Bumper-to-Bumper | 3yr/36k | No published data |
| Powertrain | 5yr/60k | No published data |
| Corrosion | 6yr/100k | No published data |
| Roadside Assistance | 5yr/60k | No published data |
Frequently Asked Questions
What is the price difference between the 2026 Chevrolet Suburban High Country and 2026 INFINITI QX80 AUTOGRAPH?
The 2026 Chevrolet Suburban High Country starts at $86,400, $25,100 less than the 2026 INFINITI QX80 AUTOGRAPH at $111,500. On a 60-month loan that is roughly $442/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2026 Chevrolet Suburban High Country?
The 2026 Chevrolet Suburban High Country is the stronger pick when you want to keep $25,100 in your pocket and the 2026 Chevrolet Suburban High Country covers your needs; you want the larger footprint for passengers or cargo.
Who should choose the 2026 INFINITI QX80 AUTOGRAPH?
The 2026 INFINITI QX80 AUTOGRAPH is the stronger pick when lower running costs matter to you, roughly $154/year less on fuel; the extra 30 hp matters for your commute or driving style; you prefer a smaller vehicle that is easier to park and maneuver.
Which gets better fuel economy, the 2026 Chevrolet Suburban High Country or 2026 INFINITI QX80 AUTOGRAPH?
The 2026 INFINITI QX80 AUTOGRAPH rates 17 combined MPG, 1 MPG ahead.
Which is more powerful, the 2026 Chevrolet Suburban High Country or 2026 INFINITI QX80 AUTOGRAPH?
The 2026 INFINITI QX80 AUTOGRAPH produces 450 hp, 30 more than the 2026 Chevrolet Suburban High Country at 420 hp. The 2026 INFINITI QX80 AUTOGRAPH also leads in torque at 516 lb-ft vs 460 lb-ft. The 2026 Chevrolet Suburban High Country runs a 6.2L V8; the 2026 INFINITI QX80 AUTOGRAPH uses a 3.5L V6 Turbo.
Is the 2026 Chevrolet Suburban High Country bigger than the 2026 INFINITI QX80 AUTOGRAPH?
The 2026 Chevrolet Suburban High Country is 15.1″ longer at 226.3″ vs 211.2″. The 2026 Chevrolet Suburban High Country has a 13.0″ longer wheelbase, which typically means more rear-seat legroom.
Explore more: Chevrolet trims, Chevrolet Suburban trims, INFINITI trims, INFINITI QX80 trims
How the Suburban and QX80 Stack Up
Two full-size SUVs, two different takes on daily versatility. The 2026 Chevrolet Suburban High Country ($86,400) and 2026 INFINITI QX80 AUTOGRAPH ($111,500) solve similar problems in different ways. The $25,100 gap adds up to $442/month on a 60-month loan. That is real money, so the pricier option needs to earn it with capabilities you will actually use.
Powertrain: Suburban vs QX80
The 2026 Chevrolet Suburban High Country runs a 6.2L V8; the 2026 INFINITI QX80 AUTOGRAPH uses a 3.5L V6 Turbo. The 2026 INFINITI QX80 AUTOGRAPH has 30 more hp (450 vs 420), enough to notice on highway on-ramps and when passing. The 2026 INFINITI QX80 AUTOGRAPH adds 56 more lb-ft of torque (516 vs 460), giving it stronger low-end pull off the line. Both use 4WD.
What It Actually Costs to Own
The 2026 INFINITI QX80 AUTOGRAPH saves roughly $154/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $770.
Size, Space, and Daily Reality
The 2026 Chevrolet Suburban High Country is 15.1″ longer, which translates to more room inside but a larger footprint in parking lots and garages. The 2026 Chevrolet Suburban High Country has a 13.0″ longer wheelbase, typically meaning a smoother ride and more rear-seat legroom.
Which One Should You Buy?
Choose the 2026 Chevrolet Suburban High Country when you want to keep $25,100 in your pocket and the 2026 Chevrolet Suburban High Country covers your needs. Choose the 2026 INFINITI QX80 AUTOGRAPH when lower running costs matter to you, roughly $154/year less on fuel. At $442/month more, the 2026 INFINITI QX80 AUTOGRAPH needs to earn that gap with something you use weekly.
Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with Chevrolet or INFINITI or any dealership.