2003 Bmw 3 series gas mileage Source Source Source Source Source Source Source Read Also: 2003 Bmw 5 series gas mileage 2003 Bmw 325i sedan gas mileage 2003 Bmw 530i gas mileage 2003 Bmw x5 4.4l gas mileage What is the gas mileage for a 2003 bmw 325i 2003 Bmw m3 coupe gas mileage