Looks like a great science experiment and engineering challenge but I can't see the practicality of it. 90% efficient is spectacular for inductive charging but far below what can be achieved with plug in. With the costs of electricity involved here 8-9% efficency is large. If you've got to have your car parked for two hours or more then the effort of plugging it in is very minor.
Is the vision that we would install inductive coils in our garages?