KYOSHO LAZER ZX-5 or DIRTCROSS

The Kyosho LAZER ZX 5 is a classic rc buggy and great platform for racing. Release in 2005 it is over 20years old. More recently Kyosho have released the dirt cross which is modelled on the zx5 design.. but how interchangeable are they. Carl is back building cars what is this Frankenstein machine ….?