Despite its angular appearance, the BX was surprisingly aerodynamic - the CD of the base model achieving a very respectable 0,34 while the CDS was 0,63.
other hydropneumatically sprung CitroŽns, this figure represents a real
world achievement since the angle of attack remains constant,
irrespective of load, acceleration, deceleration or speed.
this good aerodynamic performance with low body weight and one has a
recipe for good performance coupled with good economy.
to the introduction of ABS braking, the BX driver could maintain
control under heavy braking in the most adverse conditions.