My '70 challenger is an R/T with the SE package. The SE is not a step down, it is a step up. It included leather seat inserts, smaller back window, overhead consolette, and some other doo dads. I am saying the R/T package with the extra class of the SE package. I just think it would be neat to have a 1970 R/T SE, and a 2007-2008 R/T SE sitting side by side in my garage. They would both be plum crazy, of course.