Mazda 6 vs MG 5
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.
Mazda 6
From $29,740
Sedan
Petrol
2.5 litre in-line 4 cylinder 16 valve DOHC S-VT
125kW
8.4 L/100km
5★ ANCAP
519L
MG 5
From $30,990
Sedan
Petrol
1.5L Turbo Petrol
119kW
6.4 L/100km
3★ ANCAP
401L
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Price Breakdown
The Mazda 6 starts from $29,740 before on-road costs, while the MG 5 opens at $30,990. That makes the Mazda 6 the more affordable entry point by $1,250.
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 $32,714 and $34,089 respectively.
Over 5 years, the running costs favour the MG 5 by roughly $2,850 in fuel alone.
Safety Rundown
The Mazda 6 holds a 5-star ANCAP rating vs 3 stars for the MG 5.
Where the two diverge is in active safety technology. The MG 5 packs more ADAS features with 4 out of 10 key systems fitted, compared to 0 in the Mazda 6.
Both include the essentials: core safety systems. Airbag count is 6 in the Mazda 6 and 6 in the MG 5. The MG 5 adds a 360-degree camera that the Mazda 6 misses.
Feature Showdown
Both come with modern infotainment systems.
The MG 5 counters with Apple CarPlay that the Mazda 6 does not offer. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the Mazda 6 gets cloth upholstery while the MG 5 offers synthetic leather.
Drivetrain
The Mazda 6 uses a 2.5 litre in-line 4 cylinder 16 valve DOHC S-VT producing 125kW and 226Nm of torque, sent through a 6-speed manual / 5-speed automatic to a FWD layout.
The MG 5 responds with a 1.5L Turbo Petrol making 119kW and 250Nm, paired to a automatic driving the front wheels.
The Mazda 6 has the clear power advantage at 125kW vs 119kW. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Mazda 6 measures 4,735mm long on a 2,725mm wheelbase, 60mm longer than the MG 5 at 4,675mm (2,680mm wheelbase). The longer wheelbase on the Mazda 6 generally means more rear legroom.
Boot space is 519L in the Mazda 6 and 401L in the MG 5, giving the Mazda 6 a 118L advantage.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.0m diameter
Good
Based on 11.0m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
Interactive simulator: U-turns, parking & towing
Turning Circle
Kerb-to-kerb diameter. Smaller turns are easier in tight carparks and U-turns.
Good
Needs a 3-point turn (one reverse)
Needs about 9.5 m to swing round without stopping. Road is 9.0 m.
U-turn on a wide street
≥ 10 m: clears in one
U-turn on a standard street
7 m: 3-point turn
Standard parking bay
1.8 m wide: fits with room
Tight carpark aisle
6 m: swings in
Narrow laneway
3.5 m: no room to turn
Turning circle ratings
Standard widths: AU local streets carry ~5.5–7 m of carriageway; main roads ~9–12 m. AS 2890.1 carpark aisles are ~5.8–6.6 m for 90° bays (2.6 m wide × 5.4 m deep).
Road, aisle, swing and off-tracking figures are indicative estimates from the published turning circle. Verify in person before relying on them.
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $2,394/year for the Mazda 6 and $1,824/year for the MG 5. That is a $570 annual difference in favour of the MG 5.
Estimated annual total: $2,394 (Mazda 6) vs $1,824 (MG 5). The MG 5 saves you roughly $570 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 3 years (Mazda 6) vs 10 years / 250,000km (MG 5). The MG 5 has longer coverage.
Who Should Buy Which?
Buy the Mazda 6 if: You want the lower entry price, prioritise performance, need more boot space, or prefer Mazda's approach to design and ownership experience.
Buy the MG 5 if: You want lower running costs, value a longer warranty, or prefer MG's approach to design and ownership experience.
The Verdict
The Mazda 6 takes 4 of 6 key spec categories and comes in at a lower price. The MG 5 will save you roughly $570 a year in fuel. If boot space matters, the Mazda 6 has a clear edge. The MG 5 adds peace of mind with a longer 10-year warranty. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Mazda 6 and MG 5?
The Mazda 6 is the cheapest at $29,740 before on-road costs. That undercuts the MG 5 by $1,250.
Which is the most fuel-efficient?
The MG 5 uses the least fuel at 6.4L/100km on the combined cycle.
Which is safest?
The Mazda 6 has the highest ANCAP rating at 5 stars.
Which has the most boot space?
The Mazda 6 has the largest boot at 519L.
Which can tow the most?
The Mazda 6 has the highest braked towing capacity at 1,500kg.
Which has the best warranty?
The MG 5 has the longest warranty at 10 years / 250k km.
Which is the most powerful?
The Mazda 6 makes the most power at 125kW.
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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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