BMW

The BMW M54B25 is a 2.5 liters (2,494 cc, 152.2 cu·in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M54B30 is a 3.0 liters (2,979 cc, 181.8 cu·in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B28TU is a 2.8 liters (2,793 cc, 170.44 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B28 is a 2.8 liters (2,793 cc, 170.44 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B20TU is a 2.0 liters (1,991 cc, 121.5 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B20 is a 2.0 liters (1,991 cc, 121.5 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B25 is a 2.5 liters (2,494 cc, 152.20 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M52B25TU is a 2.5 liters (2,494 cc, 152.20 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW

The BMW M20B25 is a 2.5 liters (2,494 cc, 152.19 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW