This thought is kind of unique , it's about implementing a Tuning system. where the player can tune any vehicle with any part and he have to set it on his vehicle himself. Just like the attachments when the player select an object like a glasses or hat then he have to control it to set it on his head. This is just about making all the objects that can be attached to a vehicle ( like in real life ). So the player can turn a normal Sentinel into a Racing Car similar to a Sultan with spoilers , air vent , body parts and some cool objects like Superchargers. ( there are some objects in the game which looks like a supercharger ).
An example :
As you can see this a normal Bravura tuned with parts that can't be added to it in the normal modding shop.