Will the BMW 3 Series be expensive to run?

The BMW 3 Series running cost picture depends most on fuel or charging use, tyres, insurance and the chosen variant price. The available running-cost clue is 2025 M340i xDrive M Sport Pro: 7.7 L/100km; 2025 330Li M Sport: 6.4 L/100km; 2025 330i M Sport: 6.6 L/100km; 2025 320i Sport: 6.4 L/100km. Lower energy use helps in daily commuting, while a sensible purchase price keeps insurance and financing easier to manage over the ownership period.