Read more: Chevrolet's 10 Highest Horsepower Engines Ever Built, Ranked The N55 engine appeared in a variety of BMW models, but its most potent form was in the Alpina B4 S Edition 99, where it ...

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 ...