2019 BMW ALPINA B4 S Bi-Turbo - 440 Horsepower (N55 Engine) The 2019 BMW ALPINA B4 S Bi-Turbo uses the BMW N55 inline six engine as the basis for its highly tuned version. ALPINA was BMW's ...

The N54 stayed in the 535i's engine bay until 2010, after which it was replaced by the single-turbo N55. BMW introduced the all-new compact 1 Series hatchback to its lineup in 2004 for the 2005 ...

BMW's iconic inline six engines have had a long and storied history for the Bavarian brand. The company's inline six origins go back as far as the company's first engine, known as the IIIa ...