BYD Sealion 7 vs Nissan Ariya

The two prices are not quoted the same way, so read carefully. The Nissan Ariya lists driveaway, opening at $49,990 for the Engage as of September 2026. The BYD Sealion 7 lists before on-road costs, from $54,990 for the Premium, though a current BYD campaign absorbs the on-roads on the Premium if you buy by 30 September 2026. On a like-for-like driveaway basis the Ariya Engage is the cheaper entry by around $5,000. The catch is what the money buys: the Sealion 7 Premium adds far more power, range and standard kit than the base Engage.

It flips depending on which grade you compare. At the entry point the Sealion 7 Premium claims 482km on the WLTP cycle against the Ariya Engage's 385km, so the BYD wins there comfortably. Move up the Nissan range, though, and the Advance+ claims 504km on its larger 87kWh battery, the longest figure of any car in this comparison. The dual-motor Sealion 7 Performance eases to 456km. Independent Australian testing suggests both beat their claim less in cold or highway running, so treat the WLTP numbers as a ranking, not a promise.

For public fast-charging the Sealion 7 has the edge. It peaks at 150kW on DC and claims 10 to 80 percent in around 32 minutes, where every Ariya peaks at 130kW and takes about 35 minutes on the 63kWh grades or 40 on the bigger-battery cars. Neither is class-leading now that some rivals push past 200kW. At home the picture shifts: the Sealion 7 accepts 11kW three-phase AC across the range, while the base Ariya manages 7.4kW, and only the Advance+ and Evolve grades step up to 22kW. Most owners charge overnight, so the DC gap matters most on long trips.

Both carry a five-star ANCAP rating, so you are well covered either way, but they earn it differently. The Sealion 7, tested in 2025, scores 87 percent for adult occupant protection and 93 for child occupants, edging the Ariya's 86 and 89. The Ariya turns it around on crash avoidance, with a 95 percent safety-assist score to the BYD's 78, and it standardises features like rear cross-traffic alert and pedestrian detection across the range. Read the Sealion 7 as the stronger occupant protector and the Ariya as the sharper accident-avoider. On the day, both are among the safer choices in the class.

The Sealion 7 wins the tape measure. It offers a 500-litre boot with a 58-litre front boot on top, and its 2,930mm wheelbase gives generous rear legroom. The Ariya's boot is smaller at 466 litres, dropping to 408 on the all-wheel-drive Evolve. What the Nissan offers instead is a sense of space: a flat floor and a sliding centre console open up the cabin, which Australian reviewers rate as one of the airiest in the class. Both seat five with a full safety suite. Choose the BYD to haul more, the Ariya for the roomier feel.

Both back the battery for eight years and 160,000km, but the vehicle cover differs. BYD gives the Sealion 7 six years and 150,000km with capped-price servicing on 20,000km intervals, and roadside assistance for one year. Nissan covers the Ariya for five years with unlimited kilometres, servicing on shorter 15,000km intervals, and up to ten years of roadside assistance when you keep servicing with Nissan. High-kilometre drivers may prefer the Nissan's unlimited term and its longer roadside cover, while the BYD's longer headline period and wider service interval suit average use.

For value defined as car-per-dollar, the Sealion 7 Premium is the pick. Yes, the Ariya Engage is a little cheaper on the driveaway ticket as of September 2026, but the base Nissan runs cloth seats and manual adjustment, where the Sealion 7 Premium adds heated and ventilated seats, a panoramic roof, a head-up display, a 360-degree camera and far more power for a small step up. The comparable Ariya, the long-range Advance+, costs more than the Sealion 7 Premium and still trails it on power and kit, though it claws back range. Unless the lowest possible price is the goal, the BYD gives you more.

If how a car feels matters more to you than what it scores, the Ariya is the answer. Australian reviewers consistently praise its hushed, relaxed on-road manner and its beautifully designed, airy cabin, and rate it among the nicest mid-size EVs simply to sit in. The Sealion 7 is competent and richly equipped, but its focus is value, and reviewers note a firm-ish ride on bigger wheels, a fiddly interface and a throttle that can feel sticky on lift-off. The Ariya does give up power, boot space and outright value, so refinement is the trade you are making. For that buyer, it is worth it.

It splits along range versus charging. For distance between stops, the Ariya Advance+ leads with its 504km claim, and Australian testing suggests the Nissan holds its efficiency well on the highway. For the stops themselves the Sealion 7 is quicker, peaking at 150kW to the Ariya's 130 and topping up 10 to 80 percent a few minutes sooner. Neither is a fast-charging star by 2026 standards, so a long trip in either means planning. Pick the Advance+ if you would rather stop less often, the Sealion 7 if you prefer to spend less time at each stop.