All the motorkhana open wheelers that I have seen in action have independant front brakes which are actuated on levers which they "lean on" as they turn into a corner.

Whilst this isn't exactly "easy" - its still cheating when you can swing your little beast around in about 1/3rd the turning circle that an equivalent wheelbase car would require.

So... Difficult... but still cheating.


Google : Fiddle Brakes