BMW 3 Series vs Mercedes-Benz AMG GT 4-Door
A detailed look at how two of Australia's most popular Sedans 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 3 Series
From $94,700
Sedan
Petrol
Petrol
190kW
6.5 L/100km
ANCAP: no data
480L
Mercedes-Benz AMG GT 4-Door
Price TBC
Sedan
Petrol
Petrol
320kW
10.4 L/100km
ANCAP: no data
456L
Mercedes-Benz AMG GT 4-Door: we're still completing price, length, width, height and wheelbase, plus 2 others.
A blank cell below means we don't have that figure, not that the car scores badly on it. We leave them empty rather than estimate, so any row where one car is blank isn't a like-for-like comparison yet.
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Price Breakdown
Pricing for one or both models is yet to be confirmed for the Australian market. We will update this comparison when official RRPs are announced.
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 BMW 3 Series stands out with wireless Apple CarPlay/Android Auto and Harman Kardon audio that you will not find on the Mercedes-Benz AMG GT 4-Door. The Mercedes-Benz AMG GT 4-Door counters with Apple CarPlay, head-up display, wireless charging, panoramic roof, heated front seats, ventilated seats, power tailgate, Burmester audio and ambient lighting. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the BMW 3 Series gets sensatec synthetic leather upholstery while the Mercedes-Benz AMG GT 4-Door offers exclusive nappa leather.
Drivetrain
The BMW 3 Series uses a Petrol producing 190kW and 400Nm of torque, sent through a auto to a RWD layout. It covers the 0-100km/h sprint in 5.8 seconds.
The Mercedes-Benz AMG GT 4-Door responds with a Petrol making 320kW and 520Nm, paired to a auto driving all four wheels. It gets to 100km/h in 4.5 seconds.
The Mercedes-Benz AMG GT 4-Door has the clear power advantage at 320kW vs 190kW. In the real-world sprint, the Mercedes-Benz AMG GT 4-Door is 1.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
Boot space is 480L in the BMW 3 Series and 456L in the Mercedes-Benz AMG GT 4-Door, giving the BMW 3 Series a 24L advantage.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.0m to 12.6m
Based on 11.0m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 12.6m 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 $1,853/year for the BMW 3 Series and $2,964/year for the Mercedes-Benz AMG GT 4-Door. That is a $1,111 annual difference in favour of the BMW 3 Series.
Estimated annual total: $1,853 (BMW 3 Series) vs $2,964 (Mercedes-Benz AMG GT 4-Door). The BMW 3 Series saves you roughly $1,111 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (BMW 3 Series) vs 5 years (Mercedes-Benz AMG GT 4-Door). Both match on warranty length.
Who Should Buy Which?
Buy the BMW 3 Series if: You need more boot space, want lower running costs, or prefer BMW's approach to design and ownership experience.
Buy the Mercedes-Benz AMG GT 4-Door if: You prioritise performance, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
This is genuinely close. The BMW 3 Series and Mercedes-Benz AMG GT 4-Door trade blows across the spec sheet, and neither runs away with an outright win. The BMW 3 Series will save you roughly $1,111 a year in fuel. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, BMW 3 Series and Mercedes-Benz AMG GT 4-Door?
The BMW 3 Series is the cheapest at $94,700 before on-road costs.
Which is the most fuel-efficient?
The BMW 3 Series uses the least fuel at 6.5L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of BMW 3 Series and Mercedes-Benz AMG GT 4-Door carry a published ANCAP rating yet — check back as they are tested.
Which has the most boot space?
The BMW 3 Series has the largest boot at 480L.
Which can tow the most?
The BMW 3 Series has the highest braked towing capacity at 1,600kg.
Which is the most powerful?
The Mercedes-Benz AMG GT 4-Door makes the most power at 320kW. The Mercedes-Benz AMG GT 4-Door is quickest to 100km/h in 4.5s.
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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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