How interact with vehicle in 3third person?

I can`t interact with car in 3third person template (I created blank project). I basically want to enter a vehicle by approaching it and pressing E, the vehicle itself is a character ect, any guidance would be highly appreciated. Just in case: i downloaded my project in this: http://www.mediafire.com/file/k5di0os418l46e5/WarZone.zip
Thanks.

try looking at this project