The two have never had a dialogue with each other . Wile E.
Coyote does talk in the episode with Bugs Bunny in "Operation :
Rabbit" where Wile E. Coyote refers to himself as "Wile E. Coyote -
super genius" when he hands Bugs Bunny his calling card .
The Road Runner is only known for his "Beep Beep" vocalizations
.