the paint is cheaper, they removed the s4 metal dash reinforcement and replaced it with plastic ones. They have alot more electrical problems, go talk to Icemark on rx7club, he'll tell you the 150+ lined list of how they were produced "cheaper" aka "crappier"

there is almost a divid in the FC world, people who love zenki's and people who love kouki's and you notice it when you've been posting on rx7 forums for 4+ years.