Malice, wouldnt mormally condone this, but take the motor along to one of your local repairers, got a churchill or ADR? Or any major busy repairers?
These guys will usually take on your case and sort you out with a loan car, you dont have to fill any forms out, they just sue the other driver. Saves a load of hassle. It moves the process along quicker, as they realise the longer they drag it out the more it will cost them. My old man was hit from behind, he went to ADR, they give him a car and his was repaired and back to him in seven days, no paperwork and phoning about chasing people, and he didnt have to pay his excess, the other drivers insurer covered that.