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.
Price Breakdown
The BMW X6 M starts from $247,900 before on-road costs, while the Mercedes-Benz G-Class opens at $244,900. That makes the Mercedes-Benz G-Class the more affordable entry point by $3,000.
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 $269,390 respectively.
Over 5 years, the running costs favour the BMW X6 M by roughly $4,705 in fuel alone.
Safety Rundown
Both the BMW X6 M and Mercedes-Benz G-Class hold a 5-star ANCAP safety rating. Adult occupant protection scored 93% for the BMW X6 M and 90% for the Mercedes-Benz G-Class.
Where the two diverge is in active safety technology. The BMW X6 M packs more ADAS features with 8 out of 10 key systems fitted, compared to 7 in the Mercedes-Benz G-Class.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 7 in the BMW X6 M and 9 in the Mercedes-Benz G-Class.
Feature Showdown
The BMW X6 M features a 14.9-inch touchscreen, while the Mercedes-Benz G-Class gets a 12.3-inch display. 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 Bowers & Wilkins 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.
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 4.8 seconds.
The Mercedes-Benz G-Class responds with a Diesel making 210kW and 600Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 7.4 seconds.
The BMW X6 M has the clear power advantage at 460kW vs 210kW. In the real-world sprint, the BMW X6 M is 2.6s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The BMW X6 M measures 4,960mm long on a 2,975mm wheelbase, 336mm longer than the Mercedes-Benz G-Class at 4,624mm (2,890mm wheelbase). The longer wheelbase on the BMW X6 M generally means more rear legroom.
Boot space is 600L in the BMW X6 M and 688L in the Mercedes-Benz G-Class, giving the Mercedes-Benz G-Class a 88L advantage.
For towing, the Mercedes-Benz G-Class leads with a 3,500kg braked capacity vs 3,500kg. That 0kg 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
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $2,508/year for the BMW X6 M and $3,449/year for the Mercedes-Benz G-Class. That is a $941 annual difference in favour of the BMW X6 M.
Estimated annual total: $2,508 (BMW X6 M) vs $3,449 (Mercedes-Benz G-Class). The BMW X6 M saves you roughly $941 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, want lower running costs, or prefer BMW's approach to design and ownership experience.
Buy the Mercedes-Benz G-Class if: You want the lower entry price, need more boot space, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The BMW X6 M takes 3 of 5 key spec categories. The BMW X6 M will save you roughly $941 a year in fuel. If boot space matters, the Mercedes-Benz G-Class has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
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.
Published by CarSorted Editorial Team · 20 April 2026
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