rep is a lisp created by John-Harper? that combines features of WikiPedia:Emacs-Lisp, Common-Lisp and scheme. It supports scheme coding in two ways, via a scheme emulation (roughly r3+1/3rs?) and via a less semantically faithful embedding of scheme dialect into regular jade-lisp-style rep, called 'unscheme'.
Perhaps, although it would surely be an idiosyncratic dialect. Recall that common-lisp-like treatment of types was still legal with r3rs scheme, and macro hygiene only mandated with r4rs. rep is slowly becoming more scheme-like with time.