Rockin' Roller Coaster and Primeval Whirl are not WED designs.
RRC is made by Vekoma (http://www.vekoma.com/) and PW is made by Reverchon (http://www.reverchon.com/).
RRC is made by Vekoma (http://www.vekoma.com/) and PW is made by Reverchon (http://www.reverchon.com/).