Perhaps the single most important model BYD itself has launched in Australia is the Sealion 7. QUICK FACTS› Model: 2025 BYD Sealion 7 Performance › Starting Price: AU$63,990 ($42,100) › Dimensions: 4,830 mm (190.1 in.) I spent my time in the Performance model, an SUV that is luxurious, comfortable, and very fast. The Model Y Performance is in an entirely different stratosphere, priced from AU$89,400 ($58,900). I averaged 20.5 kWh/100 km in the Sealion 7 Performance, which is worse than you’ll get in a Model Y.