Lexus UX vs BYD Sealion 8
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 Lexus UX starts from $46,900 before on-road costs, while the BYD Sealion 8 opens at $56,990. That makes the Lexus UX the more affordable entry point by $10,090.
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 $51,590 and $62,689 respectively.
The BYD Sealion 8 qualifies for FBT exemption as an electric vehicle, which can dramatically reduce the effective cost for novated lease buyers. The Lexus UX, as a petrol model, does not qualify.
Over 5 years, the running costs favour the BYD Sealion 8 by roughly $9,995 in fuel alone.
Safety Rundown
Both the Lexus UX and BYD Sealion 8 hold a 5-star ANCAP safety rating. Adult occupant protection scored 96% for the Lexus UX and 89% for the BYD Sealion 8.
Where the two diverge is in active safety technology. The BYD Sealion 8 packs more ADAS features with 7 out of 10 key systems fitted, compared to 6 in the Lexus UX.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 8 in the Lexus UX and 9 in the BYD Sealion 8. The BYD Sealion 8 adds a 360-degree camera that the Lexus UX misses.
Feature Showdown
The Lexus UX features a 10.3-inch touchscreen, while the BYD Sealion 8 gets a 15.6-inch display. Apple CarPlay and Android Auto are standard across both.
The Lexus UX stands out with Apple CarPlay, Lexus Premium Sound audio and ambient lighting that you will not find on the BYD Sealion 8. The BYD Sealion 8 counters with wireless Apple CarPlay/Android Auto, wireless charging, panoramic roof and ventilated seats. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Lexus UX uses a Petrol producing 126kW and 200Nm of torque, sent through a automatic to a FWD layout. It covers the 0-100km/h sprint in 9.7 seconds.
The BYD Sealion 8 responds with a Petrol Turbo PHEV making 205kW and 315Nm, paired to a 1-speed auto driving the front wheels. It gets to 100km/h in 8.6 seconds.
The BYD Sealion 8 has the clear power advantage at 205kW vs 126kW. In the real-world sprint, the BYD Sealion 8 is 1.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Lexus UX measures 4,495mm long on a 2,640mm wheelbase, 545mm shorter than the BYD Sealion 8 at 5,040mm (2,950mm wheelbase). The longer wheelbase on the BYD Sealion 8 generally means more rear legroom.
Boot space is 217L in the Lexus UX and 400L in the BYD Sealion 8, giving the BYD Sealion 8 a 183L advantage. The BYD Sealion 8 seats 7 vs 5.
0Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.8m to 11.0m
Based on 10.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.0m 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 $2,052/year for the Lexus UX and $53/year for the BYD Sealion 8. That is a $1,999 annual difference in favour of the BYD Sealion 8.
Estimated annual total: $2,052 (Lexus UX) vs $53 (BYD Sealion 8). The BYD Sealion 8 saves you roughly $1,999 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 4 years / 100,000km (Lexus UX) vs 6 years / 150,000km (BYD Sealion 8). The BYD Sealion 8 has longer coverage. Capped-price servicing: 4yr (Lexus UX)—.
Who Should Buy Which?
Buy the Lexus UX if: You want the lower entry price, or prefer Lexus's approach to design and ownership experience.
Buy the BYD Sealion 8 if: You prioritise performance, need more boot space, want lower running costs, value a longer warranty, or prefer BYD's approach to design and ownership experience.
The Verdict
The BYD Sealion 8 takes 6 of 7 key spec categories. The BYD Sealion 8 will save you roughly $1,999 a year in fuel. If boot space matters, the BYD Sealion 8 has a clear edge. The BYD Sealion 8 adds peace of mind with a longer 6-year warranty. 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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