The BYD Atto 3 Ultra offers generous space for a C-segment SUV, measuring 4,445mm in length with a 2,720mm wheelbase that provides good rear legroom . Boot capacity is 440 litres with all seats up, expanding to 1,340 litres with the rear seats folded . The nearly flat rear floor also ensures comfort for middle passengers in the BYD Atto 3 Ultra .