BMW M8 vs Mercedes-Benz AMG GT
A detailed look at how two of Australia's most popular Coupes 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 BMW M8 starts from $377,000 before on-road costs, while the Mercedes-Benz AMG GT opens at $339,900. That makes the Mercedes-Benz AMG GT the more affordable entry point by $37,100.
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 $414,700 and $373,890 respectively.
Over 5 years, the running costs favour the BMW M8 by roughly $2,135 in fuel alone.
Safety Rundown
Both the BMW M8 and Mercedes-Benz AMG GT hold a 5-star ANCAP safety rating.
Where the two diverge is in active safety technology. The BMW M8 packs more ADAS features with 7 out of 10 key systems fitted, compared to 6 in the Mercedes-Benz AMG GT.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. The BMW M8 adds a 360-degree camera that the Mercedes-Benz AMG GT misses.
Feature Showdown
Both come with modern infotainment systems. Apple CarPlay and Android Auto are standard across both.
The BMW M8 stands out with wireless Apple CarPlay/Android Auto, wireless charging, Bowers & Wilkins audio and ambient lighting that you will not find on the Mercedes-Benz AMG GT. The Mercedes-Benz AMG GT counters with Apple CarPlay and Burmester audio. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The BMW M8 uses a Petrol producing 460kW and 750Nm of torque, sent through a auto to a AWD layout. It covers the 0-100km/h sprint in 5 seconds.
The Mercedes-Benz AMG GT responds with a Petrol making 430kW and 700Nm, paired to a 9-speed auto driving all four wheels. It gets to 100km/h in 3.2 seconds.
The BMW M8 has the clear power advantage at 460kW vs 430kW. In the real-world sprint, the Mercedes-Benz AMG GT is 1.8s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The BMW M8 measures 5,098mm long on a 3,027mm wheelbase, 370mm longer than the Mercedes-Benz AMG GT at 4,728mm (2,700mm wheelbase). The longer wheelbase on the BMW M8 generally means more rear legroom.
Boot space is 420L in the BMW M8 and 321L in the Mercedes-Benz AMG GT, giving the BMW M8 a 99L advantage.
0Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.4m diameter
Average
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 $3,278/year for the BMW M8 and $3,705/year for the Mercedes-Benz AMG GT. That is a $427 annual difference in favour of the BMW M8.
Estimated annual total: $3,278 (BMW M8) vs $3,705 (Mercedes-Benz AMG GT). The BMW M8 saves you roughly $427 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (BMW M8) vs 5 years / 999,999km (Mercedes-Benz AMG GT). Both match on warranty length.
Who Should Buy Which?
Buy the BMW M8 if: You prioritise performance, need more boot space, want lower running costs, or prefer BMW's approach to design and ownership experience.
Buy the Mercedes-Benz AMG GT if: You want the lower entry price, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The BMW M8 takes 3 of 5 key spec categories. The BMW M8 will save you roughly $427 a year in fuel. If boot space matters, the BMW M8 has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
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.
Published by CarSorted Editorial Team · 20 April 2026
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