It seems a couple of bad things happened to the Fiat 500. Firstly the door deformed, which means in an accident it’s going to be difficult to get the driver & passengers out for medical treatment.
The second thing was that the airbag seemed to burst just after the driver was about 1/2 way through his foward thrust. That is, it receives the blow from the driver, and then the entire car is thrust backwards & the steering wheel into the drivers face by the momentum of the Audi Q7.
Other than that, that Fiat 500 is a remarkably tough little beast.