In this case, a tech-savvy M135i owner has managed to hack into his system and upload the soundtrack used in the new M4. It swaps the typically smooth straight-six soundtrack for a rougher ...

The facelifted version of BMW’s brilliant M135i, which proved to be one of the real-world stars of the last few years. Along with Volkswagen’s Golf R the M135i became renowned for offering ...

A range of tweaks has made the M135i more appealing than the somewhat underwhelming hot hatch released initially, but speccing the adaptive suspension found on our test car means you miss out on ...

With the M135i, BMW has created a very impressive all- round package. Acceleration is ferocious, but the car always feels planted and composed. The steering could do with more feel, but on the ...