The standard car has normal springs and dampers.
A DCC equipped car has dampers which have damper oil which when you apply a magnetic field to it (via electromagnets built into the struts/rear dampers) becomes thicker and increases the damping level of the suspension. Obviously with newer systems like the Mk7 Golf, this is variable and has multiple levels of damping.
The struts and rear dampers are completely different between standard/DCC equipped and it would be prohibitively expensive to retrofit the system.