No, the R-versions are longer versions of the currently offered CBT exams: the R-versions contain the same passages and questions as the CBT plus more passages and questions.
The old paper-based MCAT was a longer test (77Q PS, 60Q VR, 77Q BS) and the 3R-8R are practice tests for that version.
However, these tests are excellent practice materials! Don't forget to take the CBT AAMC's 9 through 11 before your real exam to get a feel for the current MCAT.