Tesla Model Y vs BYD Sealion 7: Which SUV Should You Buy in Australia? (2026)

Two family SUVs, similar price range, both well-reviewed, both practical enough for school runs and weekend trips. The Tesla Model Y and BYD Sealion 7 are probably the two most compared electric SUVs in Australia right now, and they genuinely appeal to the same buyer. You want something under $60,000, sized right for a family, and capable of the occasional long drive without major stress.

The comparison is interesting because neither car dominates across the board. They each win on different things, and which wins depends heavily on how you use a car. Australia’s EV fleet passed 454,000 vehicles by the end of 2025 (EV Council, January 2026). The Tesla Model Y was the best-selling EV in 2024 with 21,253 units, with BYD’s total Australian sales reaching 14,260 for the same year (CarExpert, January 2025). Both are serious, well-supported options.

The BYD is $3,910 cheaper at the Premium trim and carries a significantly larger battery. The Tesla has a charging network that is objectively better for long-distance driving. Let’s work through the rest.

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Specs at a glance

	Tesla Model Y RWD	BYD Sealion 7 Premium
Price before ORC	$58,900	$54,990
WLTP Range	466km	482km
Battery	62.5kWh	82.56kWh
DC Charging	170kW	150kW
0-100 km/h	6.9 sec	6.7 sec
Drive type	RWD	RWD
V2L	No	Yes (2.2kW)
7-seat option	Yes (+$3,000)	No
Warranty	5yr / 192,000km	6yr / 150,000km
Tow rating	1,600kg	750kg

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Price and value

The BYD Sealion 7 Premium costs $3,910 less than the Tesla Model Y RWD before on-road costs. Both sit comfortably under the $91,387 LCT threshold for fuel-efficient vehicles and both qualify for the FBT exemption on novated leases.

On a spec-per-dollar comparison, the Sealion 7 wins the opening round. You’re paying less and getting more battery capacity, V2L as standard, and marginal extra WLTP range. But price alone doesn’t resolve this comparison. The Tesla’s charging network, towing capacity, software ecosystem, and resale position all carry weight that doesn’t appear on a spec sheet.

The gap is what you’re paying for what the Model Y does better. For some buyers, those things are decisive. For others, they’re irrelevant.

Winner: BYD Sealion 7 on upfront price.

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Battery size: a real difference

The Sealion 7 carries 82.56kWh against the Model Y’s 62.5kWh. That’s a 20kWh difference, representing a 32% larger battery in the BYD. This matters for more than just range.

A larger battery cycles less deeply for any given daily distance. A car using 12% of its battery for a 50km commute stresses cells differently than one using 19%. Over five or six years of ownership, shallower daily cycling supports better battery capacity retention. Both cars use LFP (lithium iron phosphate) chemistry, which is already more thermally stable and degradation-resistant than older NMC chemistries. The Sealion 7’s larger battery extends that advantage further.

The Model Y’s smaller battery isn’t a liability for daily use. Most Australians drive 30-50km per day, and the Model Y handles that comfortably. But over a longer ownership horizon, the Sealion 7’s depth of battery reserve is a genuine advantage.

Winner: BYD Sealion 7 on battery size and long-term cycle depth.

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Range: essentially equal

WLTP range is 466km for the Model Y and 482km for the Sealion 7. The 16km difference is genuinely negligible. Neither car reliably achieves WLTP figures in real-world Australian highway driving. Expect 380-420km from either car at motorway speeds with climate control running.

Both require two charging stops on a Melbourne to Sydney run. The range difference doesn’t change the number of stops on any real Australian route. Where the larger battery helps the Sealion 7 is on confidence between stops, arriving with more buffer remaining.

Winner: Draw.

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Charging network: Tesla’s biggest advantage

The Model Y charges at up to 170kW DC. The Sealion 7 manages 150kW. On paper, a 10-80% charge takes roughly 28 minutes for the Model Y and 35-40 minutes for the Sealion 7 at peak speeds.

The raw peak figure matters less than the network behind it. Tesla operates approximately 130 Supercharger sites across Australia, with more than 66% now open to non-Tesla vehicles via CCS2. For Model Y owners, the experience is integrated: in-car navigation routes you automatically to Supercharger stops, pre-conditions the battery before arrival, and handles payment without a separate account. Consistent speeds of 150-250kW at most V3 sites.

Non-Tesla vehicles including the Sealion 7 can access Superchargers, but at higher rates: around 79 cents per kWh without a membership, compared to roughly 64-66 cents per kWh for Tesla owners on the $9.99/month plan. The access is real; the cost difference is also real.

The Sealion 7 relies on Chargefox (roughly 950 locations nationally), Evie Networks (around 325 sites), and BP Pulse. That network has grown substantially and covers major routes. Speeds and reliability vary more than Superchargers, and there’s no in-car routing integration.

For a buyer who charges primarily at home and uses fast chargers a few times per year, the difference is manageable. For someone doing Sydney to Brisbane or Melbourne to Adelaide regularly, the Supercharger experience is meaningfully better.

Winner: Tesla Model Y. The network advantage is real and consistent.

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The towing question

This one matters more than the spec sheet often suggests.

The Tesla Model Y is rated at 1,600kg braked towing. The BYD Sealion 7 is rated at 750kg. That’s not a marginal difference. It’s a categorically different capability.

At 1,600kg, the Model Y can handle a small to medium camper trailer, a jet ski on a full-size trailer, a small boat with outboard and tinnie (typically 600-900kg combined), or a loaded box trailer. For the realistic outdoor and family use cases of Australian buyers, 1,600kg covers a lot of ground.

At 750kg, the Sealion 7 manages a small jet ski on a basic trailer, a light box trailer for garden waste, or gear at the very bottom of the weight range. It does not handle a caravan, a boat of any meaningful size, or a horse float. If you currently tow and expect to keep doing so, this difference effectively removes the Sealion 7 from the shortlist.

If you genuinely never tow, and many buyers don’t, the Sealion 7’s limitation costs you nothing. But it’s worth being honest about plans. Circumstances change. A car that can’t tow closes doors later.

Winner: Tesla Model Y. By a substantial margin for anyone with towing needs.

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Software and the connected car experience

Tesla’s software is the most mature in-car operating system in the industry as of 2026. Over-the-air updates arrive regularly, often adding useful features without a service visit. The energy app gives detailed consumption data per trip. Trip planning integrates automatically with Supercharger stops. Fleet-wide driving data has improved range estimates and energy efficiency for owners across multiple update cycles.

The Model Y touchscreen handles nearly all car functions. Physical controls are minimal. Some buyers adapt quickly and find it intuitive. Others spend a few weeks adjusting to adjusting climate from a screen rather than a knob.

BYD’s infotainment system is capable and has improved since the Sealion 7 launched. The screen is large, the interface is responsive, and basic connectivity features work well. OTA updates have been rolling out. It’s a good system. It doesn’t yet have the depth of Tesla’s ecosystem in terms of trip planning, energy data, or years of refinement behind it.

This gap will narrow as BYD invests in software. As of 2026, Tesla leads on the software side of ownership.

Winner: Tesla Model Y on software maturity.

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Real-world ownership and charging costs

93% of Australian EV owners charge primarily at home (EV Council Ownership Survey 2024). That context matters for how you weigh the Supercharger advantage in day-to-day costs.

On home charging at off-peak rates around 20-25 cents per kWh, covering 15,000km per year costs roughly $380-480 in electricity for either car. The Sealion 7’s larger battery draws slightly more total energy, but the cost difference at home charging rates is minor.

When using public fast chargers, the gap is more visible. At 79 cents per kWh on a Supercharger as a non-Tesla, versus 64-66 cents per kWh on the Tesla $9.99/month plan, a typical 50kWh charge costs about $39.50 for the Sealion 7 versus $32-33 for the Model Y. At Chargefox ultra-rapid sites, both cars pay similar rates.

For a typical owner doing 15,000km per year with 90% home charging, the annual charging cost difference between the two cars is small, roughly $50-80. It’s not a reason to choose one over the other.

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Resale and residuals

Tesla has one of the strongest resale value profiles in the Australian car market. The Model Y holds its value well, supported by consistent demand, brand recognition, and the Supercharger network as an ongoing ownership advantage. Buyers of used Model Ys understand what they’re getting.

BYD is newer to the Australian market and still building its used-car ecosystem. Resale values for BYD vehicles have been adequate but less predictable than Tesla’s. Brand recognition with mainstream used-car buyers is still developing, which affects what you can achieve at trade-in or private sale.

For buyers who trade cars on three or four-year cycles, this residual difference can represent a meaningful dollar amount when it’s time to sell. For buyers planning to hold for seven-plus years, it matters less. Depreciation curves flatten over longer ownership horizons.

BYD’s Australian presence is growing rapidly and resale values should improve as the brand establishes itself more deeply. But as of 2026, Tesla has a clear advantage if you plan to sell within the next few years.

Winner: Tesla Model Y on current resale trajectory.

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Verdict

Choose the BYD Sealion 7 if you mainly charge at home, don’t do frequent long interstate runs, want V2L capability, prefer the larger battery buffer, and want to spend less upfront. For the daily school-run and weekend family, the Sealion 7’s value case is strong and genuinely hard to argue against.

Choose the Tesla Model Y RWD if you do regular interstate road trips and want the Supercharger network working for you, need more than 750kg towing capacity, want the optional seven-seat configuration, or value Tesla’s software ecosystem and over-the-air update track record.

For most buyers who charge at home and stay within a few hundred kilometres of their city, the BYD’s price advantage, larger battery, and V2L make it the better everyday value. For regular highway users and anyone who tows, the Model Y earns its premium.

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Common questions

Is the BYD Sealion 7 reliable?

Early Australian ownership feedback has been positive, and BYD backs the vehicle with a six-year / 150,000km warranty plus a separate eight-year / 160,000km battery warranty. BYD is the world’s largest EV manufacturer by volume, which matters for parts availability and support continuity. Long-term Australian reliability data past five years is limited, as with any newer entrant. The warranty provides reasonable coverage during the period when that matters most.

Which has better long-term battery health?

Both the Model Y RWD and Sealion 7 use LFP chemistry. LFP degrades more slowly over charge cycles than older NMC chemistries and tolerates storage at full charge in Australian summer heat better. The Sealion 7’s larger battery cycles less deeply per day for typical commuting distances, which is a marginal advantage for long-term capacity retention. Both carry eight-year battery warranties. There isn’t enough long-term Australian data yet to separate them definitively on degradation rates.

Does the Tesla Model Y qualify for the FBT exemption?

Yes. The Model Y RWD at $58,900 is well under the $91,387 threshold. The Sealion 7 Premium at $54,990 also qualifies. Both are fully eligible for novated lease salary packaging with FBT removed. See our EV rebates and incentives guide for current threshold details.

Can the Sealion 7 tow a caravan?

No. At 750kg braked towing, the Sealion 7 handles small trailers only. A caravan, boat trailer, or horse float exceeds that rating. If towing a caravan is in your plans, the Model Y at 1,600kg is the appropriate option. For caravans over 2,500kg you’d want to look at the BYD Shark PHEV or a dedicated tow vehicle.

What is the real-world range of the BYD Sealion 7?

WLTP is 482km. In real-world Australian driving at highway speeds, expect 380-420km. In mixed urban and suburban use, 420-450km is typical. Charging to 80% daily gives around 340-380km of practical range, enough for most drivers to charge once every few days rather than daily.

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Both cars are worth test driving. The specs favour different buyers in different ways. For a broader look at the family EV market, the best family SUV EVs guide covers more options with the same level of detail. The full electric vehicle comparison lets you filter by price, range, towing capacity, and V2L availability side by side.