Audi A7 vs Porsche Cayenne
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.
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Price Breakdown
The Audi A7 starts from $141,869 before on-road costs, while the Porsche Cayenne opens at $138,800. That makes the Porsche Cayenne the more affordable entry point by $3,069.
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 $156,056 and $152,680 respectively.
Over 5 years, the running costs favour the Audi A7 by roughly $4,845 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 Audi A7 features a 10.1-inch touchscreen, while the Porsche Cayenne gets a 12.3-inch display and 12.6-inch instruments. Apple CarPlay and Android Auto are standard across both.
The Audi A7 stands out with wireless Apple CarPlay/Android Auto, wireless charging, ventilated seats, Bang & Olufsen audio and ambient lighting that you will not find on the Porsche Cayenne. The Porsche Cayenne counters with Apple CarPlay and BOSE audio. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Audi A7 uses a Petrol MHEV producing 250kW and 500Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 5.7 seconds.
The Porsche Cayenne responds with a Petrol making 260kW and 500Nm, paired to a 8-speed auto driving all four wheels. It gets to 100km/h in 6 seconds.
The Porsche Cayenne has the clear power advantage at 260kW vs 250kW. In the real-world sprint, the Audi A7 is 0.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Audi A7 measures 4,969mm long on a 2,926mm wheelbase, 39mm longer than the Porsche Cayenne at 4,930mm (2,895mm wheelbase). The longer wheelbase on the Audi A7 generally means more rear legroom.
Boot space is 535L in the Audi A7 and 698L in the Porsche Cayenne, giving the Porsche Cayenne a 163L advantage.
For towing, the Porsche Cayenne leads with a 3,500kg braked capacity vs 2,500kg. That 1,000kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.7m to 12.1m
Based on 11.7m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 12.1m 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 $1,995/year for the Audi A7 and $2,964/year for the Porsche Cayenne. That is a $969 annual difference in favour of the Audi A7.
Estimated annual total: $1,995 (Audi A7) vs $2,964 (Porsche Cayenne). The Audi A7 saves you roughly $969 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (Audi A7) vs 3 years / 999,999km (Porsche Cayenne). The Audi A7 has longer coverage.
Who Should Buy Which?
Buy the Audi A7 if: You want lower running costs, value a longer warranty, or prefer Audi's approach to design and ownership experience.
Buy the Porsche Cayenne if: You want the lower entry price, prioritise performance, need more boot space, need stronger towing, or prefer Porsche's approach to design and ownership experience.
The Verdict
The Porsche Cayenne takes 4 of 7 key spec categories and comes in at a lower price. The Audi A7 will save you roughly $969 a year in fuel. If boot space matters, the Porsche Cayenne has a clear edge. The Audi A7 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, Audi A7 and Porsche Cayenne?
The Porsche Cayenne is the cheapest at $138,800 before on-road costs. That undercuts the Audi A7 by $3,069.
Which is the most fuel-efficient?
The Audi A7 uses the least fuel at 7L/100km on the combined cycle.
Which is safest?
They are evenly matched — Audi A7 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Porsche Cayenne has the largest boot at 698L.
Which can tow the most?
The Porsche Cayenne has the highest braked towing capacity at 3,500kg.
Which has the best warranty?
The Audi A7 has the longest warranty at 5 years / Unlimited.
Which is the most powerful?
The Porsche Cayenne makes the most power at 260kW. The Audi A7 is quickest to 100km/h in 5.7s.
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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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