The new pictures show the prototype with even less disguise leaving pretty much every design line and feature on view to the naked eye.

The three door hatchback version of the BMW 135i M-Performance has been caught by our spies while doing its latest round of testing. The new pictures show the prototype with even less disguise leaving pretty much every design line and feature on view to the naked eye.

The model features larger air intakes that give it a slightly more aggressive appearance compared to the standard model and from the rear we can see twin tailpipes poking out either side of the number plate.

What we can't see from these pictures is the twin-turbo 3.0-liter that is under the hood. The power unit will generate around 322 hp (240 kW, 326 PS) and up to 450 Nm (332 ft-lb) of torque and is set to be mated to either a six-speed manual or a seven-speed dual-clutch automatic.

BMW has already announced they will be debuting a number of M-Performance models at the forthcoming Geneva Motor Show. The BMW 135i M-Performance that you see before you will be amongst these unveilings.

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SPIED: 2012 BMW 135i hatchback M-Sport sheds more disguise