Unused Engines

Would be nice to have some sort of bonu$ per motor if you have not used all your engines at the time of a restock

haha - yeh I like that idea.

On the other hand there is lots of discussion about too much money floating about so if actually buying engines was an option, or a penalty for using too many, then this would alter the financial situation of a lot of top ranking players.

Yes. there is a generous amount of money to be had.