Except there are no words in Spanish that end with a rolled r.
And in any event, that wouldn't mean there are words in Spanish with rolled final r's, which is what was being discussed, just that people might pronounce a word that way.
Radio is "Rradio".
I've found amusing how some people who learn english as a second language end up pronouncing spanish as "espanish", since no spanish word begis with s(consonant), except for sh.