BMW North America’s CEO Jim O’Donnell has confirmed the existence of a turbocharged four-cylinder gasoline engine project for BMW cars.
BMW is already using a turbocharged inline-4 for its MINI brand, and has a turbocharged four cylinder diesel (320d), a twin turbocharged four cylinder diesel (123d), a new smooth-revving turbodiesel six (facelifted 330d and F01 730d), a twin turbocharged six cylinder diesel (330d), a twin turbo six cylinder (335i), and a twin turbocharged 4.4 litre V8.
Adding a powerful turbocharged or twin turbocharged inline-4 engine will complete this line-up of new turbocharged engines and if it ends up in the 1-Series will make the car a true spiritual successor to what the original BMW 3-Series was like. The new engine could also replace some of the smaller displacement N52 engines like the 2.5 litre in 523i and 525i states of tune. But will a fast BMW really feel the same without the lovely engine sound of an inline-6 or a V8?