Enginebay space vs Maintenance

I've been thinking, but would it be possible to implent a system or slider in wich you (the player) can decide the amount of enginebay space?
Wich would mean that more enginebay space means less cabin space, but if you have more space in the enginebay, the maintenance cost goes down becouse the mechanic has more workingspace and has to remove less parts in order to reach and fix/replace the broken part(s).
A good example is my previous car, a opel (or vauxhall).
If you wanted to replace the Multi belt/serpentine belt, the one wich drives the airco, waterpump, etc. you had to lift the entire engineblock out of the car to replace becouse there was not enough space, while with other cars you can replace them without removing the entire engineblock becouse theres enough space.
or easy said:
More enginebay space = Less maintenance cost = Less Cabinspace
Less enginebay space = More maintenance cost = More Cabinspace
Anyways i hope its clear what i mean.
Wich would mean that more enginebay space means less cabin space, but if you have more space in the enginebay, the maintenance cost goes down becouse the mechanic has more workingspace and has to remove less parts in order to reach and fix/replace the broken part(s).
A good example is my previous car, a opel (or vauxhall).
If you wanted to replace the Multi belt/serpentine belt, the one wich drives the airco, waterpump, etc. you had to lift the entire engineblock out of the car to replace becouse there was not enough space, while with other cars you can replace them without removing the entire engineblock becouse theres enough space.
or easy said:
More enginebay space = Less maintenance cost = Less Cabinspace
Less enginebay space = More maintenance cost = More Cabinspace
Anyways i hope its clear what i mean.