Starting with a battered Johan 69 Road Runner body and interior, I added a Modelhaus trunk panel, grafted in GTX lower quarters for the emblems, Ertl 69 GTX tail lights, grille and seats...MPC Charger 500 chassis...JoHan Hemi and trans.Having owned both 1969 GTX and Roadrunners (real cars), I feel that the JoHan rendition, if you can get it, is much more accurate in its proportions than the ERTL 68-69 RR/GTX  kits, which are treasure trove for parts.This model is painted with leftover Duplicolor touchup spray from my real Mopar.