BMW X6 M vs Mercedes-Benz G-Class
A detailed look at how two of Australia's most popular SUVs compare on price, running costs, safety, and everyday livability.
Specifications and pricing correct at time of publishing. Prices are RRP before on-road costs unless stated otherwise. Always confirm with the manufacturer or dealer before purchasing.

BMW X6 M
From $247,900
SUV
Petrol
Petrol
460kW
12.5 L/100km
ANCAP: no data
580L

Mercedes-Benz G-Class
From $214,900
SUV
Diesel
Diesel
270kW
8.7 L/100km
ANCAP: no data
480L
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Price Breakdown
The BMW X6 M starts from $247,900 before on-road costs, while the Mercedes-Benz G-Class opens at $214,900. That makes the Mercedes-Benz G-Class the more affordable entry point by $33,000.
Once you factor in stamp duty, registration, CTP insurance, and dealer delivery, expect to add roughly 8-12% on top of the RRP depending on your state. That puts estimated driveaway prices in the ballpark of $272,690 and $236,390 respectively.
Over 5 years, the running costs favour the Mercedes-Benz G-Class by roughly $5,415 in fuel alone.
Safety Rundown
ANCAP safety ratings have not been published for both models yet. We will update this section when crash test results are available.
Feature Showdown
The BMW X6 M features a 14.9-inch touchscreen paired with a 12.3-inch digital dash, while the Mercedes-Benz G-Class gets a 12.3-inch display and 12.3-inch instruments. Apple CarPlay and Android Auto are standard across both.
The BMW X6 M stands out with panoramic roof, heated front seats, ventilated seats, power tailgate and Harman Kardon audio that you will not find on the Mercedes-Benz G-Class. The Mercedes-Benz G-Class counters with Burmester audio and ambient lighting. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the BMW X6 M gets merino leather upholstery while the Mercedes-Benz G-Class offers nappa leather. Climate control is 4-zone in the BMW X6 M and 3-zone in the Mercedes-Benz G-Class.
Drivetrain
The BMW X6 M uses a Petrol producing 460kW and 750Nm of torque, sent through a auto to a AWD layout. It covers the 0-100km/h sprint in 3.9 seconds.
The Mercedes-Benz G-Class responds with a Diesel making 270kW and 750Nm, paired to a automatic driving all four wheels. It gets to 100km/h in 5.8 seconds.
The BMW X6 M has the clear power advantage at 460kW vs 270kW. In the real-world sprint, the BMW X6 M is 1.9s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The BMW X6 M measures 4,948mm long on a 2,972mm wheelbase, 123mm longer than the Mercedes-Benz G-Class at 4,825mm (2,890mm wheelbase). The longer wheelbase on the BMW X6 M generally means more rear legroom.
Boot space is 580L in the BMW X6 M and 480L in the Mercedes-Benz G-Class, giving the BMW X6 M a 100L advantage.
For towing, the Mercedes-Benz G-Class leads with a 3,500kg braked capacity vs 2,700kg. That 800kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
12.7m to 13.0m
Based on 12.7m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 13.0m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
Compare U-turns side by side
Turning Circle · U-turn compare
kerb-to-kerb, 2 cars0 of 2 clear a 7.0 m street in one sweep
Green cars complete the U-turn; amber need a 3-point turn. Drag the slider to test tighter streets.
Standard widths: AU local streets ~5.5–7 m; main roads ~9–12 m.
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $3,563/year for the BMW X6 M and $2,480/year for the Mercedes-Benz G-Class. That is a $1,083 annual difference in favour of the Mercedes-Benz G-Class.
Estimated annual total: $3,563 (BMW X6 M) vs $2,480 (Mercedes-Benz G-Class). The Mercedes-Benz G-Class saves you roughly $1,083 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (BMW X6 M) vs 5 years / 999,999km (Mercedes-Benz G-Class). Both match on warranty length.
Who Should Buy Which?
Buy the BMW X6 M if: You prioritise performance, need more boot space, or prefer BMW's approach to design and ownership experience.
Buy the Mercedes-Benz G-Class if: You want the lower entry price, want lower running costs, need stronger towing, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
This is genuinely close. The BMW X6 M and Mercedes-Benz G-Class trade blows across the spec sheet, and neither runs away with an outright win. The Mercedes-Benz G-Class will save you roughly $1,083 a year in fuel. If boot space matters, the BMW X6 M has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, BMW X6 M and Mercedes-Benz G-Class?
The Mercedes-Benz G-Class is the cheapest at $214,900 before on-road costs. That undercuts the BMW X6 M by $33,000.
Which is the most fuel-efficient?
The Mercedes-Benz G-Class uses the least fuel at 8.7L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of BMW X6 M and Mercedes-Benz G-Class carry a published ANCAP rating yet — check back as they are tested.
Which has the most boot space?
The BMW X6 M has the largest boot at 580L.
Which can tow the most?
The Mercedes-Benz G-Class has the highest braked towing capacity at 3,500kg.
Which is the most powerful?
The BMW X6 M makes the most power at 460kW. The BMW X6 M is quickest to 100km/h in 3.9s.
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Disclaimer: All information in this comparison was believed to be correct at the time of publishing (20 April 2026). Prices are manufacturer recommended retail prices (RRP) and may vary by state, dealer, and options. Driveaway costs include estimated on-road costs for Victoria. Fuel economy figures are WLTP/ADR combined cycle. Specifications can change without notice. Always verify with the manufacturer before making a purchase decision. CarSorted does not accept payment for recommendations.
Auto-generated from CarSorted's specification data · 20 April 2026
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