Mercedes-Benz AMG GT vs Land Rover Defender OCTA
A detailed look at how two of Australia's most popular cars 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.

Mercedes-Benz AMG GT
From $373,000
Coupe
Petrol
Petrol
430kW
14.1 L/100km
ANCAP: no data
321L

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
Track the Mercedes-Benz AMG GT & Land Rover Defender OCTA
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Price Breakdown
The Mercedes-Benz AMG GT starts from $373,000 before on-road costs, while the Land Rover Defender OCTA opens at $304,500. That makes the Land Rover Defender OCTA the more affordable entry point by $68,500.
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 $410,300 and $334,950 respectively.
Over 5 years, the running costs favour the Land Rover Defender OCTA by roughly $1,425 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
Both come with modern infotainment systems. Apple CarPlay and Android Auto are standard across both.
The Mercedes-Benz AMG GT stands out with Apple CarPlay, head-up display and Burmester audio that you will not find on the Land Rover Defender OCTA. The Land Rover Defender OCTA counters with wireless Apple CarPlay/Android Auto, wireless charging, Meridian audio and ambient lighting. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the Mercedes-Benz AMG GT gets nappa leather upholstery while the Land Rover Defender OCTA offers leather. Climate control is 2-zone in the Mercedes-Benz AMG GT and 3-zone in the Land Rover Defender OCTA.
Drivetrain
The Mercedes-Benz AMG GT uses a Petrol producing 430kW and 800Nm of torque, sent through a 9-speed auto to a AWD layout. It covers the 0-100km/h sprint in 3.2 seconds.
The Land Rover Defender OCTA responds with a 4.4L V8 Twin-Turbo Petrol Mild Hybrid making 467kW and 750Nm, paired to a 8-speed automatic driving all four wheels. It gets to 100km/h in 4 seconds.
The Land Rover Defender OCTA has the clear power advantage at 467kW vs 430kW. In the real-world sprint, the Mercedes-Benz AMG GT is 0.8s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Mercedes-Benz AMG GT measures 4,728mm long on a 2,700mm wheelbase, 85mm shorter than the Land Rover Defender OCTA at 4,813mm (3,023mm wheelbase). The longer wheelbase on the Land Rover Defender OCTA generally means more rear legroom.
Boot space is 321L in the Mercedes-Benz AMG GT and 972L in the Land Rover Defender OCTA, giving the Land Rover Defender OCTA a 651L advantage. The Land Rover Defender OCTA seats 5 vs 4.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
12.5m to 12.8m
Based on 12.5m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 12.8m 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 $4,019/year for the Mercedes-Benz AMG GT and $3,734/year for the Land Rover Defender OCTA. That is a $285 annual difference in favour of the Land Rover Defender OCTA.
Estimated annual total: $4,019 (Mercedes-Benz AMG GT) vs $3,734 (Land Rover Defender OCTA). The Land Rover Defender OCTA saves you roughly $285 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (Mercedes-Benz AMG GT) vs 5 years / 999,999km (Land Rover Defender OCTA). Both match on warranty length.
Who Should Buy Which?
Buy the Mercedes-Benz AMG GT if: You or prefer Mercedes-Benz's approach to design and ownership experience.
Buy the Land Rover Defender OCTA if: You want the lower entry price, prioritise performance, need more boot space, want lower running costs, or prefer Land Rover's approach to design and ownership experience.
The Verdict
The Land Rover Defender OCTA takes 4 of 5 key spec categories and comes in at a lower price. The Land Rover Defender OCTA will save you roughly $285 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, Mercedes-Benz AMG GT and Land Rover Defender OCTA?
The Land Rover Defender OCTA is the cheapest at $304,500 before on-road costs. That undercuts the Mercedes-Benz AMG GT by $68,500.
Which is the most fuel-efficient?
The Land Rover Defender OCTA uses the least fuel at 13.1L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of Mercedes-Benz AMG GT and Land Rover Defender OCTA 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 Mercedes-Benz AMG GT is quickest to 100km/h in 3.2s.
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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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