Advice Needed for Accident Victim

[now]

Hi everyone

My wife was in an accident on Thursday. An older man (in his 70's) went through a red light and t-boned my mother-in-law's car. My wife was passenger, she took the full impact. The car was slammed into the traffic light. (Write-off.) Fortunately, an Ambulance was at the intersection, and saw everything, as did many other witnesses. The front passenger door had to be ripped off to get my wife out.

The man had a dog in his 4WD that he was taking to the vet. He didn't slam on his brakes or attempt to swerve to miss the car my wife was in.

My wife has heaps of brusing, stitches to her ear, we've had 2 days in hospitals for checkups and x-rays. Her head is swollen and really banged up.

To top it off, the side air bags in the car (Toyota Corolla Levin Hatch) did not even go off, nor did the front air bags. This obviously would have helped lessen the impact and injuries.

My questions:

1. Is there legal action we can take for medical costs, injuries, etc? Or is this just a waste of time?

2. Is there action we can take against Toyota for the failure of the air bags?

3. If my mother-in-law gets less than market value of the car from Suncorp, can we take legal action against anyone to recover the difference?

Thanks!