Land Rover Defender OCTA 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.

Land Rover Defender OCTA
From $304,500
SUV
Petrol
4.4L V8 Twin-Turbo Petrol Mild Hybrid
467kW
13.1 L/100km
ANCAP: no data
972L

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 Land Rover Defender OCTA starts from $304,500 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 $89,600.
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 $334,950 and $236,390 respectively.
Over 5 years, the running costs favour the Mercedes-Benz G-Class by roughly $6,270 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 Land Rover Defender OCTA features a 11.4-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 Land Rover Defender OCTA stands out with panoramic roof, heated front seats, ventilated seats, power tailgate and Meridian audio that you will not find on the Mercedes-Benz G-Class. The Mercedes-Benz G-Class counters with head-up display and Burmester audio. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the Land Rover Defender OCTA gets leather upholstery while the Mercedes-Benz G-Class offers nappa leather.
Drivetrain
The Land Rover Defender OCTA uses a 4.4L V8 Twin-Turbo Petrol Mild Hybrid producing 467kW and 750Nm of torque, sent through a 8-speed automatic to a AWD layout. It covers the 0-100km/h sprint in 4 seconds.
The Mercedes-Benz G-Class responds with a Diesel making 270kW and 750Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 5.8 seconds.
The Land Rover Defender OCTA has the clear power advantage at 467kW vs 270kW. In the real-world sprint, the Land Rover Defender OCTA is 1.8s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Land Rover Defender OCTA measures 4,813mm long on a 3,023mm wheelbase, 12mm shorter than the Mercedes-Benz G-Class at 4,825mm (2,890mm wheelbase). The longer wheelbase on the Land Rover Defender OCTA generally means more rear legroom.
Boot space is 972L in the Land Rover Defender OCTA and 480L in the Mercedes-Benz G-Class, giving the Land Rover Defender OCTA a 492L 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.
12.8m to 13.0m
Based on 12.8m 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 $3,734/year for the Land Rover Defender OCTA and $2,480/year for the Mercedes-Benz G-Class. That is a $1,254 annual difference in favour of the Mercedes-Benz G-Class.
Estimated annual total: $3,734 (Land Rover Defender OCTA) vs $2,480 (Mercedes-Benz G-Class). The Mercedes-Benz G-Class saves you roughly $1,254 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (Land Rover Defender OCTA) vs 5 years / 999,999km (Mercedes-Benz G-Class). Both match on warranty length.
Who Should Buy Which?
Buy the Land Rover Defender OCTA if: You prioritise performance, need more boot space, or prefer Land Rover's approach to design and ownership experience.
Buy the Mercedes-Benz G-Class if: You want the lower entry price, want lower running costs, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The Land Rover Defender OCTA takes 3 of 5 key spec categories. The Mercedes-Benz G-Class will save you roughly $1,254 a year in fuel. If boot space matters, the Land Rover Defender OCTA 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, Land Rover Defender OCTA and Mercedes-Benz G-Class?
The Mercedes-Benz G-Class is the cheapest at $214,900 before on-road costs. That undercuts the Land Rover Defender OCTA by $89,600.
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 Land Rover Defender OCTA and Mercedes-Benz G-Class carry a published ANCAP rating yet — check back as they are tested.
Which has the most boot space?
The Land Rover Defender OCTA has the largest boot at 972L.
Which can tow the most?
The Land Rover Defender OCTA has the highest braked towing capacity at 3,500kg.
Which is the most powerful?
The Land Rover Defender OCTA makes the most power at 467kW. The Land Rover Defender OCTA is quickest to 100km/h in 4s.
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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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