The new engine, known as the N20 and set to lead a return of four-cylinder BMW models to North America for the first time since 1998, has been conceived to (indirectly) replace the company's long ...

To give you an idea, these numbers produced by the N20 2.0-liter four-cylinder turbo ... the comparatively small gains you'd get from an ECU tune and exhaust on the naturally aspirated motor.

Today, BMW has announced they will be swopping out their 3.0-liter straight-six in the X3 xDrive28i for the brand new N20 2.0-liter turbo with Twin-Power technology. This engine produces 245 PS ...