THE X2 is a unique proposition in BMW's model line-up, which is – believe it or not – decreasing in size after two decades of rapid expansion.

While whether the style-focused small SUV will see another generation is still up for debate, BMW M has finally given it a proper performance bent.

More importantly, though, the resulting X2 M35i has the distinction of debuting the four-cylinder engine that will power the next crop of small cars and SUVs from BMW M.

Yes, we’re talking about the four-pot banger that will replace the beloved inline six-cylinder unit. Needless to say, you’ll want to read on to find out how the X2 M35i stacks up.