Thus far, BMW M Performance has managed to give us the BMW M550d xDrive, BMW X5 M50d, and BMW X6 M50d. Each vehicle has been built on an existing new BMW model, then infused with a diesel powertrain, as well as performance enhancing tweaks. And now, the BMW M Performance is looking to bring its high level of expertise to a petrol-powered vehicle too.

Specifically, BMW showed off its all-new M135i at the 2012 Geneva?