In addition I personally think they should drop the 2 wheel option and only do the 3 wheel option. More safety regards to traction braking and control and more power and less stress for steep inclines.
Peak braking uses the hydraulic disc brakes. The number of motors doesn't matter. It will be very abrupt, for the same reason that acceleration is: Light weight. The 1800Lb will come to a halt in a very short distance, with all wheels nearly locked by ABS discs.
In addition I personally think they should drop the 2 wheel option and only do the 3 wheel option. More safety regards to traction braking and control and more power and less stress for steep inclines.