BMW XM vs Porsche 911
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.
BMW XM
From $309,900
SUV
Plug-in Hybrid
Plug-in Hybrid
550kW
2.7 kWh/100km
ANCAP: no data
527L
Porsche 911
From $296,700
Coupe
Petrol
Petrol
290kW
9.4 L/100km
ANCAP: no data
132L
Plug-in hybrid fuel economy is shown as a hybrid (battery depleted) so it compares fairly with the other car. A PHEV's official "combined" figure assumes you start every trip fully charged, so real-world economy depends on how often you plug in. Electric range shows how far it goes before the petrol engine is needed.
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Price Breakdown
The BMW XM starts from $309,900 before on-road costs, while the Porsche 911 opens at $296,700. That makes the Porsche 911 the more affordable entry point by $13,200.
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 $340,890 and $326,370 respectively.
The BMW XM qualifies for FBT exemption as an electric vehicle, which can dramatically reduce the effective cost for novated lease buyers. The Porsche 911, as a petrol model, does not qualify.
Over 5 years, the running costs favour the BMW XM by roughly $10,325 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.
Charging Times
How long each takes to charge — from a household power point to ultra-rapid DC — estimated from battery size and max charge rates.
How long to charge
25.7kWh usableEstimates from usable battery size and the car's max charge rates (7.4kW AC). Real times vary with temperature, starting charge, charger output and the charging curve.
Feature Showdown
The BMW XM features a 14.9-inch touchscreen paired with a 12.3-inch digital dash, while the Porsche 911 gets a 10.9-inch display and 12.6-inch instruments.
The BMW XM stands out with wireless Apple CarPlay/Android Auto, head-up display, wireless charging, panoramic roof, heated front seats, ventilated seats, power tailgate, Bowers & Wilkins audio and ambient lighting that you will not find on the Porsche 911. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the BMW XM gets merino leather upholstery while the Porsche 911 offers leather. Climate control is 4-zone in the BMW XM and 2-zone in the Porsche 911.
Drivetrain
The BMW XM uses a Plug-in Hybrid producing 550kW and 1000Nm of torque, sent through a auto to a AWD layout. It covers the 0-100km/h sprint in 3.8 seconds.
The Porsche 911 responds with a Petrol making 290kW and 450Nm, paired to a 8-speed pdk driving the rear wheels. It gets to 100km/h in 4.1 seconds.
The BMW XM has the clear power advantage at 550kW vs 290kW. In the real-world sprint, the BMW XM is 0.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The BMW XM measures 5,110mm long on a 3,105mm wheelbase, 577mm longer than the Porsche 911 at 4,533mm (2,450mm wheelbase). The longer wheelbase on the BMW XM generally means more rear legroom.
Boot space is 527L in the BMW XM and 132L in the Porsche 911, giving the BMW XM a 395L advantage. The BMW XM seats 5 vs 4.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.2m to 11.4m
Based on 11.4m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.2m 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 $614/year for the BMW XM and $2,679/year for the Porsche 911. That is a $2,065 annual difference in favour of the BMW XM.
Estimated annual total: $614 (BMW XM) vs $2,679 (Porsche 911). The BMW XM saves you roughly $2,065 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (BMW XM) vs 3 years / 999,999km (Porsche 911). The BMW XM has longer coverage.
Who Should Buy Which?
Buy the BMW XM if: You prioritise performance, need more boot space, want lower running costs, value a longer warranty, or prefer BMW's approach to design and ownership experience.
Buy the Porsche 911 if: You want the lower entry price, or prefer Porsche's approach to design and ownership experience.
The Verdict
The BMW XM takes 4 of 6 key spec categories. The BMW XM will save you roughly $2,065 a year in fuel. If boot space matters, the BMW XM has a clear edge. The BMW XM 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, BMW XM and Porsche 911?
The Porsche 911 is the cheapest at $296,700 before on-road costs. That undercuts the BMW XM by $13,200.
Which is the most fuel-efficient?
The BMW XM uses the least fuel at 2.7L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of BMW XM and Porsche 911 carry a published ANCAP rating yet — check back as they are tested.
Which has the most boot space?
The BMW XM has the largest boot at 527L.
Which can tow the most?
The BMW XM has the highest braked towing capacity at 2,700kg.
Which has the best warranty?
The BMW XM has the longest warranty at 5 years / Unlimited.
Which is the most powerful?
The BMW XM makes the most power at 550kW. The BMW XM is quickest to 100km/h in 3.8s.
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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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