main thing is no-one is hurt which is a blessing...

providing they do not classify as a cat A or B write off you have the option to buy back the car break it and sell for spares (wheels/tyres, brakes, ENGINE!!!, gearbox proabably interior, ICE, glass, instrument panel, suspension and some body parts).

As far as repairing it goes from all I have heard I'd afraid it's pretty much a no-no price-wise