What makes Andrew's Jeep so scary is that it's driven from the right side, so it really looks like Pennywise is driving on the left! With animated movements and recordings of the monster's voice, you might think that it will run you down.
Andrew Johnson of Louisville, Kentucky, makes many Jeeps like this. He takes them to events and gets a lot of favorable responses, especially from Pennywise's favorite victims. He explained to WLKY News:
Lots of kids really, really like it. I go to schools and festivals. It's a lot of fun.
-via Geek Tyrant