Quick answer: BYD e-Platform 3.0 is the engineering foundation under many of BYD’s pure-electric cars: a shared design that combines an 8-in-1 electric drive unit, a heat pump, a structural Blade Battery, and a low, long-wheelbase body. BYD launched it in September 2021 and followed with an upgraded version, e-Platform 3.0 Evo, in May 2024.