BMW X6 vs Chevrolet Suburban: Specs Compared
Also searched as Chevrolet Suburban vs BMW X6 specs — both orientations show this same side-by-side comparison.
The BMW X6 is the more efficient of the two: it reaches 24 mpg combined versus 23 mpg for the Chevrolet Suburban, a 1 mpg advantage and costs about $100 less per year to fuel.
Across 4 measured categories, the BMW X6 leads in 4. Figures are EPA test data, not manufacturer claims.
2015–2027
BMW X6
Standard Sport Utility Vehicle 4WD · 47 configurations
2015–2026
Chevrolet Suburban
Standard Sport Utility Vehicle 4WD · 72 configurations
Head-to-head specifications
| Metric | BMW X6 | Chevrolet Suburban |
|---|---|---|
| Best combined MPG | 24 mpg ✓ | 23 mpg |
| Best city MPG | 23 mpg ✓ | 21 mpg |
| Best highway MPG | 27 mpg | 27 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $3,150 ✓ | $3,250 |
| Lowest CO2 output | 359 g/mi ✓ | 437 g/mi |
| Engines offered | SIDI; Mild Hybrid, SIDI & PFI; Mild Hybrid, SIDI, SIDI; | 3.0, SIDI, SIDI; Stop-Start, SIDI; FFV |
| Transmissions | Automatic (S8) | Automatic 10-spd, Automatic 6-spd |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive | 4-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Premium | Diesel, Regular, Premium |
| EPA class | Standard Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2015–2027 | 2015–2026 |
| Configurations on record | 47 | 72 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
BMW X6 vs Chevrolet Suburban dimensions and size
The Chevrolet Suburban is 30.7 inches longer than the BMW X6 on a wheelbase 17.3 inches longer, and 187.4 lbs heavier. At over 200 inches, the larger of the two is past the comfortable limit of a standard 192-inch single garage bay once you allow walking room.
| Dimension | BMW X6 (2026) | Chevrolet Suburban (2026) | Difference |
|---|---|---|---|
| Length | 194.9 in | 225.6 in | 30.7 in |
| Width (excl. mirrors) | 78.7 in | 81.1 in | 2.4 in |
| Height | 66.9 in | 75.6 in | 8.7 in |
| Wheelbase | 116.9 in | 134.3 in | 17.3 in |
| Curb weight | 5,496 lbs | 5,684 lbs | 187 lbs |
Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.
BMW X6 vs Chevrolet Suburban: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the BMW X6 burns about $3,150 of fuel annually against $3,250 for the Chevrolet Suburban. That $100 yearly gap compounds to roughly $500 over five years and $800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.
City versus highway split: the BMW X6 is the stronger commuter at 23 mpg city, while the Chevrolet Suburban pulls ahead on the interstate at 27 mpg highway. If most of your driving is stop-and-go traffic the city figure is the one to weigh; for long-distance highway mileage the reverse is true, and the two vehicles effectively swap places depending on how you drive.
Powertrain choice: the BMW X6 is recorded with 4 distinct engine configurations (SIDI; Mild Hybrid, SIDI & PFI; Mild Hybrid, SIDI), the Chevrolet Suburban with 4 (3.0, SIDI, SIDI; Stop-Start). Across 47 recorded BMW X6 configurations and 72 for the Chevrolet Suburban, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.
Drivetrain and class: the BMW X6 is offered with All-Wheel Drive, Rear-Wheel Drive, the Chevrolet Suburban with 4-Wheel Drive, Rear-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Standard Sport Utility Vehicle 4WD and Standard Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
Tailpipe emissions: at their cleanest configurations the BMW X6 emits 359 g/mile of CO2 versus 437 g/mile for the Chevrolet Suburban. Emissions track fuel consumption almost exactly, so the cleaner vehicle here is also the cheaper one to fuel.
X6 vs Suburban: common questions
Which is better on gas, the BMW X6 or the Chevrolet Suburban?
The BMW X6 is the more efficient of the two: it reaches 24 mpg combined versus 23 mpg for the Chevrolet Suburban, a 1 mpg advantage and costs about $100 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the BMW X6 runs about $3,150 a year in fuel at its most efficient configuration, versus about $3,250 for the Chevrolet Suburban — a difference of roughly $100 per year.
What engines do the X6 and Suburban offer?
BMW X6: SIDI; Mild Hybrid, SIDI & PFI; Mild Hybrid, SIDI, SIDI;. Chevrolet Suburban: 3.0, SIDI, SIDI; Stop-Start, SIDI; FFV.
Are they in the same vehicle class?
Yes — the EPA classifies both the BMW X6 and the Chevrolet Suburban as Standard Sport Utility Vehicle 4WD, so they compete directly.
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