Inheritance problem (default constructor error)

[mycomputerfund]

hey guys im new here and new to programming in C++
i have this project for school and ive hit a dead end.

included i have attached the header, functions cpp, and driver cpp files

when building i get the following error :error C2512: 'automobile' : no appropriate default constructor available

now ive read the other thread in here about that same error but, the difference is that i dont have a class within a class, they are inherited classes.

any help would be extremly appreciated!!!!!!!

thx guys