Most Important BMW Petrol Engines
In newer generations, the most common engines are the 2.0 turbo units (B48) in the 320i, 330i, 520i, X1 and X3 versions with 156–258 HP. The 3.0 inline six (B58) in the 340i, 440i, 540i and X4 M40i delivers 320–387 HP and outstanding sound. Older N20 (2.0 turbo) and N55 (3.0 turbo) generations also appear frequently on the used-car market. M Performance and M models (M2, M3, M4, X3M, X5M) use high-performance S-series engines.