My take on a Rat Rod, complete with rusty finish, Big Block V8 engine & working steeringwheel.
These are referring to the older Model Team sets, 10-12 studs wide.
The idea is a theme off Rat & Hot Rod models. These could be made modular in the sense of modular engines, maybe cabines and chassis aswell. In that way you can combine different cars (sets) to make even more different cars.
A set could be 1 car with maybe an alternate engine.
A set could also be 'partspacks' with maybe engine parts, chassis & rims, cabines etc.
A set could also be a workshop, a garage open at 2 sides, closed at 2 sides with tools etc.
Thanks for looking!