The Kicks 96 Impossible question with Callahan: 

 Powered by- Cates Family Eye Care, 

Chester Boulevard in Richmond. 

More than of the half of drivers in the white-water valley don't use this function that their vehicle has. 

What is it? 

ANSWER: turn signal 

Congrats to Elisa from Hagerstown, who along with Callahan are the only folks that use their turn signals!