With regards to braking with the left foot, the P7 pedal is sized to duplicate the location of the
standard clutch pedal (except that it is a little closer to the floorboard). In this way the left foot
is able to flow naturally from the foot rest to the brake pedal, and back. Anyone who has driven with
a clutch pedal realizes that after some time the movement of the left foot between the clutch pedal and
the footrest becomes almost instinctive, and the same is true of the P7 brake pedal.
With the P7 pedal installed, the SMG equipped E46 M3 is allowed to come into its own. Short of designing
the entire footwell specifically for two pedal operation, this is as good as it gets.
If the driver prefers, the right foot can be used for braking most of the time. This is
perfectly instinctive, and the left foot can be used when the occasion arises.
Or, for a more complete SMG experience the P7 brake pedal can just as easily be used for left foot braking
100% of the time.