根據官方 WLTP 數據，BMW 3 Series 318i 嘅綜合油耗約為每 100 公里 6.4 至 7.2 升。而性能更強嘅 M340i xDrive 油耗就高啲，約為每 100 公里 7.8 至 8.5 升。
According to official WLTP figures, the BMW 3 Series 318i has a combined fuel consumption of approximately 6.4 to 7.2 litres per 100 km. The more powerful M340i xDrive has higher consumption at around 7.8 to 8.5 litres per 100 km.
