Homework 4.24.14 - Auto Dealership practicing Classes (Initial submission)

Dealership homework attached!

Small glitch - in the process of working on different features in branches, I seemed to mix up versions of most current work.  I look forward to learning how to really use these branches...

Notes to self (other than correctly learning branches....):
- Created the dealership value as a private method in the class - but therefore it can not be accessed.  I understand how 'private' can safeguard information, but not sure how to use it in a way that it still contributes to the program?
- Program isn't ironed out to accept multiple cars of the same model... needs to be refined to allow user to narrow down from more than 1, if exist.