With the dolly system you can wheel in and out of doorways and garages.” He started brainstorming the hitch after witnessing ...

But there's one thing most people wouldn't guess about Dolly: she's the owner of an impressive car collection. Intrigued?

"So, there was a vehicle moving, and I was walking, and then somebody grabbed me and pulled me back, and I looked up, and it was Dolly Parton," Hill recalled, adding that she was surprised.