This scheme is more convenient for trucks and bikes. For cars in Fig. 4 this two suspensions better be close as much as possible to save the cabin space. Or even to use only one suspension for all wheels ! 

I made a small model many years ago. It was perfect.

Fig.5-8 are possible solutions for cars.

The lack of this project that the strikes don't eliminate fully here. But this direction has all possibilities to resolve it. All this improvements make this design more complex. So I don't introduce them here. To stay this project a basis source of further research.