Bentley Bentayga vs BMW M8
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.
Price Breakdown
The Bentley Bentayga starts from $412,600 before on-road costs, while the BMW M8 opens at $377,000. That makes the BMW M8 the more affordable entry point by $35,600.
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 $453,860 and $414,700 respectively.
Over 5 years, the running costs favour the BMW M8 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
The Bentley Bentayga features a 14.9-inch touchscreen, while the BMW M8 gets a 12.3-inch display. Apple CarPlay and Android Auto are standard across both.
The Bentley Bentayga stands out with Apple CarPlay that you will not find on the BMW M8. The BMW M8 counters with wireless Apple CarPlay/Android Auto. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Bentley Bentayga uses a Twin-turbo petrol producing 405kW and 770Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 4.5 seconds.
The BMW M8 responds with a Petrol making 460kW and 750Nm, paired to a auto driving all four wheels. It gets to 100km/h in 5 seconds.
The BMW M8 has the clear power advantage at 460kW vs 405kW. In the real-world sprint, the Bentley Bentayga is 0.5s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Bentley Bentayga measures 5,141mm long on a 2,995mm wheelbase, 43mm longer than the BMW M8 at 5,098mm (3,027mm wheelbase). The longer wheelbase on the BMW M8 generally means more rear legroom.
Boot space is 484L in the Bentley Bentayga and 420L in the BMW M8, giving the Bentley Bentayga a 64L advantage. The Bentley Bentayga seats 5 vs 4.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.4m to 13.1m
Based on 13.1m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.4m 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 $3,620/year for the Bentley Bentayga and $3,278/year for the BMW M8. That is a $342 annual difference in favour of the BMW M8.
Estimated annual total: $3,620 (Bentley Bentayga) vs $3,278 (BMW M8). The BMW M8 saves you roughly $342 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 3 years (Bentley Bentayga) vs 5 years / 999,999km (BMW M8). The BMW M8 has longer coverage.
Who Should Buy Which?
Buy the Bentley Bentayga if: You need more boot space, or prefer Bentley's approach to design and ownership experience.
Buy the BMW M8 if: You want the lower entry price, prioritise performance, want lower running costs, value a longer warranty, or prefer BMW's approach to design and ownership experience.
The Verdict
The BMW M8 takes 4 of 6 key spec categories and comes in at a lower price. The BMW M8 will save you roughly $342 a year in fuel. If boot space matters, the Bentley Bentayga has a clear edge. The BMW M8 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, Bentley Bentayga and BMW M8?
The BMW M8 is the cheapest at $377,000 before on-road costs. That undercuts the Bentley Bentayga by $35,600.
Which is the most fuel-efficient?
The BMW M8 uses the least fuel at 11.5L/100km on the combined cycle.
Which is safest?
They are evenly matched — BMW M8 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Bentley Bentayga has the largest boot at 484L.
Which has the best warranty?
The BMW M8 has the longest warranty at 5 years / 1000k km.
Which is the most powerful?
The BMW M8 makes the most power at 460kW. The Bentley Bentayga is quickest to 100km/h in 4.5s.
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!
