Alfa Romeo Junior vs MG MG4
A detailed look at how two of Australia's most popular Hatchbacks 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 Alfa Romeo Junior starts from $45,900 before on-road costs, while the MG MG4 opens at $37,990. That makes the MG MG4 the more affordable entry point by $7,910.
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 $50,490 and $41,789 respectively.
The MG MG4 qualifies for FBT exemption as an electric vehicle, which can dramatically reduce the effective cost for novated lease buyers. The Alfa Romeo Junior, as a petrol model, does not qualify.
Safety Rundown
Both the Alfa Romeo Junior and MG MG4 hold a 5-star ANCAP safety rating.
Where the two diverge is in active safety technology. The Alfa Romeo Junior packs more ADAS features with 7 out of 10 key systems fitted, compared to 5 in the MG MG4.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 6 in the Alfa Romeo Junior and 6 in the MG MG4.
Feature Showdown
The Alfa Romeo Junior features a 10.3-inch touchscreen, while the MG MG4 gets a 10.3-inch display. Apple CarPlay and Android Auto are standard across both.
The Alfa Romeo Junior stands out with wireless Apple CarPlay/Android Auto, wireless charging and ambient lighting that you will not find on the MG MG4. The MG MG4 counters with Apple CarPlay. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Alfa Romeo Junior uses a Petrol MHEV producing 107kW and 230Nm of torque, sent through a dct to a FWD layout. It covers the 0-100km/h sprint in 8.9 seconds.
The MG MG4 responds with a Electric making 125kW and 250Nm, paired to a auto driving the rear wheels. It gets to 100km/h in 7.9 seconds.
The MG MG4 has the clear power advantage at 125kW vs 107kW. In the real-world sprint, the MG MG4 is 1.0s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Alfa Romeo Junior measures 4,170mm long on a 2,560mm wheelbase, 117mm shorter than the MG MG4 at 4,287mm (2,705mm wheelbase). The longer wheelbase on the MG MG4 generally means more rear legroom.
Boot space is 270L in the Alfa Romeo Junior and 363L in the MG MG4, giving the MG MG4 a 93L advantage.
For towing, the MG MG4 leads with a 1,500kg braked capacity vs 1,200kg. That 300kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.8m to 10.8m
Based on 10.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 10.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
True Cost to Own
Running cost data is not yet available for both models. We will update when figures are confirmed.
Warranty: 5 years / 150,000km (Alfa Romeo Junior) vs 10 years / 250,000km (MG MG4). The MG MG4 has longer coverage.
Who Should Buy Which?
Buy the Alfa Romeo Junior if: You or prefer Alfa Romeo's approach to design and ownership experience.
Buy the MG MG4 if: You want the lower entry price, prioritise performance, need more boot space, value a longer warranty, need stronger towing, or prefer MG's approach to design and ownership experience.
The Verdict
The MG MG4 takes 6 of 6 key spec categories and comes in at a lower price. If boot space matters, the MG MG4 has a clear edge. The MG MG4 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, Alfa Romeo Junior and MG MG4?
The MG MG4 is the cheapest at $37,990 before on-road costs. That undercuts the Alfa Romeo Junior by $7,910.
Which is the most fuel-efficient?
The Alfa Romeo Junior uses the least fuel at 5L/100km on the combined cycle.
Which is safest?
They are evenly matched — Alfa Romeo Junior and MG MG4 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The MG MG4 has the largest boot at 363L.
Which can tow the most?
The MG MG4 has the highest braked towing capacity at 1,500kg.
Which has the best warranty?
The MG MG4 has the longest warranty at 10 years / 250k km.
Which is the most powerful?
The MG MG4 makes the most power at 125kW. The MG MG4 is quickest to 100km/h in 7.9s.
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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