BYD Sealion 6 vs Isuzu MU-X
A detailed look at how two of Australia's most popular SUVs 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 BYD Sealion 6 starts from $42,990 before on-road costs, while the Isuzu MU-X opens at $43,900. That makes the BYD Sealion 6 the more affordable entry point by $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 $47,289 and $48,290 respectively.
Over 5 years, the running costs favour the BYD Sealion 6 by roughly $7,550 in fuel alone.
Safety Rundown
Both the BYD Sealion 6 and Isuzu MU-X hold a 5-star ANCAP safety rating. Adult occupant protection scored 89% for the BYD Sealion 6 and 86% for the Isuzu MU-X.
Where the two diverge is in active safety technology. Both models are evenly matched with 6 out of 10 key ADAS systems.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 7 in the BYD Sealion 6 and 8 in the Isuzu MU-X.
Feature Showdown
The BYD Sealion 6 features a 12.8-inch touchscreen, while the Isuzu MU-X gets a 8-inch display and 4.2-inch instruments. Apple CarPlay and Android Auto are standard across both.
Drivetrain
The BYD Sealion 6 uses a Plug-in Hybrid producing 160kW and 300Nm of torque, sent through a auto to a FWD layout. It covers the 0-100km/h sprint in 7.9 seconds.
The Isuzu MU-X responds with a Diesel making 120kW and 400Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 11 seconds.
The BYD Sealion 6 has the clear power advantage at 160kW vs 120kW. In the real-world sprint, the BYD Sealion 6 is 3.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The BYD Sealion 6 measures 4,775mm long on a 2,765mm wheelbase, 85mm shorter than the Isuzu MU-X at 4,860mm (2,855mm wheelbase). The longer wheelbase on the Isuzu MU-X generally means more rear legroom.
Boot space is 400L in the BYD Sealion 6 and 311L in the Isuzu MU-X, giving the BYD Sealion 6 a 89L advantage. The Isuzu MU-X seats 7 vs 5.
For towing, the Isuzu MU-X leads with a 3,500kg braked capacity vs 1,000kg. That 2,500kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.0m to 11.6m
Based on 11.0m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.6m 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 $314/year for the BYD Sealion 6 and $1,824/year for the Isuzu MU-X. That is a $1,510 annual difference in favour of the BYD Sealion 6.
Estimated annual total: $314 (BYD Sealion 6) vs $1,824 (Isuzu MU-X). The BYD Sealion 6 saves you roughly $1,510 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 6 years / 150,000km (BYD Sealion 6) vs 6 years / 150,000km (Isuzu MU-X). Both match on warranty length.
Who Should Buy Which?
Buy the BYD Sealion 6 if: You want the lower entry price, prioritise performance, need more boot space, want lower running costs, or prefer BYD's approach to design and ownership experience.
Buy the Isuzu MU-X if: You need stronger towing, or prefer Isuzu's approach to design and ownership experience.
The Verdict
The BYD Sealion 6 takes 5 of 6 key spec categories and comes in at a lower price. The BYD Sealion 6 will save you roughly $1,510 a year in fuel. If boot space matters, the BYD Sealion 6 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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