2026–27 BMW X6 vs Mercedes-Benz G-Class: We Compared the Data
By the CarWhere Vehicle Data Team · Updated November 8, 2026 · how we score
Our pick: the X6 — it leads our weighted scorecard 2.5–1.5 across 4 categories, winning on better fuel economy (23 mpg vs 15 mpg best EPA combined) and more available power (617 hp vs 579 hp). Choose the G-Class if you'll sell in about five years (61.3% vs 44.8% of value retained).
Scorecard: X6 2.5 pts · G-Class 1.5 pts across 4 scored categories.
The scorecard
| Category (weight) | 2026 X6 | 2027 G-Class | Winner |
|---|---|---|---|
| 5-year value retained (1.5) | 44.8% | 61.3% | G-Class |
| Best EPA combined (1.5) | 23 mpg | 15 mpg | X6 |
| Most horsepower available (1) | 617 hp | 579 hp | X6 |
| Max towing (1) | — | 7,000 lb | No data |
| Standard seats (1) | 5 | 5 | Tie |
| Recalls, 2023–2025 model years (0.5) | 8 | — | No data |
| Weighted points | 2.5 | 1.5 | X6 |
Which one we'd buy, and for whom
- Commuter. Commuters: the X6 — 23 mpg vs 15 mpg (best EPA combined).
- Family. Families: it's a wash — X6 5 vs G-Class 5 (standard seats).
- Resale. Resale-minded buyers: the G-Class — 61.3% vs 44.8% (5-year value retained).
Price: sticker and what buyers paid
A current starting MSRP isn't on file for both models.
Reliability: NHTSA complaints and recalls
- X6: a complaint rate per 1,000 sold isn't available yet.
- G-Class: a complaint rate per 1,000 sold isn't available yet.
Complaint rates are owner complaints filed with NHTSA divided by vehicles sold — a federal-data signal, not a survey score.
Specs side by side
| 2026 X6 | 2027 G-Class | |
|---|---|---|
| Horsepower | 375–617 hp | 443–579 hp |
| Max torque | 553 lb-ft | 859 lb-ft |
| EPA combined | 15–23 mpg (hybrid avail.) | 15 mpg (hybrid avail.) |
| Electric range (best) | — | 249 mi |
| Max towing | — | 7,000 lb |
| Seats (standard / max) | 5 / 5 | 5 / 5 |
Automaker-published figures; EPA ratings from fueleconomy.gov. "—" = not published.
Resale: 5-year value retained
A 5-year-old (2021) X6 lists for a median $41,914 — 44.8% of today's median new price of $93,525. A 5-year-old (2021) G-Class lists for a median $135,015 — 61.3% of today's median new price of $220,335.
Shop both
- See new 2026 BMW X6s for sale →
- See 1,029 new 2027 Mercedes-Benz G-Class for sale →Median listed price $231,905 · updated Nov 7, 2026
Negotiating either one?
CarWhere PRO ($12.99/mo) shows the 75th-percentile target price for your exact trim and zip, comparable nearby deals, and an AI quote analyzer. See PRO → · Checking a specific used one? The $9.99 Full VIN Report covers the federal record + original window sticker.
More on the BMW X6
More on the Mercedes-Benz G-Class
Related head-to-heads
FAQ
Is the X6 better than the G-Class?
On our data, yes. Our pick: the X6 — it leads our weighted scorecard 2.5–1.5 across 4 categories, winning on better fuel economy (23 mpg vs 15 mpg best EPA combined) and more available power (617 hp vs 579 hp). Choose the G-Class if you'll sell in about five years (61.3% vs 44.8% of value retained).
Which is more reliable, the X6 or the G-Class?
We only rank reliability by NHTSA complaints per 1,000 vehicles sold, and that rate isn't available for both models yet.
Which holds its value better, the X6 or the G-Class?
The G-Class: a 5-year-old example lists for 61.3% of the new price, versus 44.8% for the X6, based on median used asking prices against today's median new price.
Which is cheaper, the X6 or the G-Class?
We don't have a current starting MSRP for both models.
Which has better gas mileage, the X6 or the G-Class?
The X6: up to 23 mpg combined vs 15 mpg for the G-Class (best EPA rating across each lineup).
How we score
Each category compares one published number per model and counts only when both models have it. The winner earns the category weight; results inside the tie band earn nothing. Our pick has more weighted points; level points fall back to more category wins, then the reliability winner, then the price winner.
- Starting MSRP: lower wins; tie within 3%.
- NHTSA complaints per 1,000 sold: lower wins; tie within 15%.
- 5-year value retained: higher wins; tie within 2 points.
- Best EPA combined: higher wins; tie within 1 mpg (3 MPGe).
- Most horsepower available: higher wins; tie within 5%.
- Max towing: higher wins; tie within 5%.
- Cargo behind rear seats: higher wins; tie within 5%.
- Standard seats: higher wins; tie same count.
- Median discount verified buyers got: higher wins; tie within 0.5 points.
- Recalls, 2023–2025 model years: lower wins; tie within 1.
Towing weighs 2 for pickups and 1 otherwise; seating is only scored between SUVs and minivans, using standard (never optional) seats. Sources: automaker spec pages and order guides; EPA ratings (fueleconomy.gov); NHTSA owner complaints and recall campaigns against published US sales; median used asking prices across active US dealer listings from licensed vehicle-data providers; verified buyer-submitted deal sheets for discounts.
Cite this page: CarWhere, "2026–27 BMW X6 vs Mercedes-Benz G-Class: We Compared the Data," carwhere.com/compare-cars/bmw-x6-vs-mercedes-benz-g-class, updated November 8, 2026.