Aston Martin DBX vs Land Rover Defender OCTA
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.
Aston Martin DBX
From $390,000
SUV
Twin-turbo petrol
405kW
14.3 L/100km
ANCAP: no data
632L
Land Rover Defender OCTA
From $304,500
SUV
4.4L V8 Twin-Turbo Petrol Mild Hybrid
467kW
13.1 L/100km
5★ ANCAP
972L
Price Breakdown
The Aston Martin DBX starts from $390,000 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 $85,500.
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 $429,000 and $334,950 respectively.
Over 5 years, the running costs favour the Land Rover Defender OCTA by roughly $1,710 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 Aston Martin DBX 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.
Drivetrain
The Aston Martin DBX uses a Twin-turbo petrol producing 405kW and 700Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 4.5 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 405kW. In the real-world sprint, the Land Rover Defender OCTA is 0.5s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Aston Martin DBX measures 5,039mm long on a 3,060mm wheelbase, 226mm longer than the Land Rover Defender OCTA at 4,813mm (3,023mm wheelbase). The longer wheelbase on the Aston Martin DBX generally means more rear legroom.
Boot space is 632L in the Aston Martin DBX and 972L in the Land Rover Defender OCTA, giving the Land Rover Defender OCTA a 340L advantage.
For towing, the Land Rover Defender OCTA 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.
12.8m diameter
Large
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 $4,076/year for the Aston Martin DBX and $3,734/year for the Land Rover Defender OCTA. That is a $342 annual difference in favour of the Land Rover Defender OCTA.
Estimated annual total: $4,076 (Aston Martin DBX) vs $3,734 (Land Rover Defender OCTA). The Land Rover Defender OCTA saves you roughly $342 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 3 years (Aston Martin DBX) vs 5 years / 999,999km (Land Rover Defender OCTA). The Land Rover Defender OCTA has longer coverage.
Who Should Buy Which?
Buy the Aston Martin DBX if: You or prefer Aston Martin'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, value a longer warranty, need stronger towing, or prefer Land Rover's approach to design and ownership experience.
The Verdict
The Land Rover Defender OCTA takes 7 of 7 key spec categories and comes in at a lower price. The Land Rover Defender OCTA will save you roughly $342 a year in fuel. If boot space matters, the Land Rover Defender OCTA has a clear edge. The Land Rover Defender OCTA adds peace of mind with a longer 5-year warranty. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Aston Martin DBX and Land Rover Defender OCTA?
The Land Rover Defender OCTA is the cheapest at $304,500 before on-road costs. That undercuts the Aston Martin DBX by $85,500.
Which is the most fuel-efficient?
The Land Rover Defender OCTA uses the least fuel at 13.1L/100km on the combined cycle.
Which is safest?
They are evenly matched — Land Rover Defender OCTA all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
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 has the best warranty?
The Land Rover Defender OCTA has the longest warranty at 5 years / 1000k km.
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.
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
Comments (0)
Sign in to join the conversation
No comments yet. Be the first!
