If I deliberately take a hammer to your property I am guilty of criminal damage and can be charged. On conviction or admission of guilt I will be ordered by the judge to pay compensation for all relevant costs and to pay for all repairs necessary to restore your property to its original condition. I can not argue that in my opinion it is beyond economical repair and only pay what I consider appropriate. NEITHER CAN THE INSURANCE COMPANIES !
If through my actions I damage your property by accident not deliberately (maybe I was throwing my hammer in the air and dropped it on your car). I am now guilty of causing damage by reckless endangerment and can be charged. On conviction or admission of guilt I will be ordered by the judge to pay compensation for all relevant costs and to pay for all repairs necessary to restore your property to its original condition. I can not argue that in my opinion it is beyond economical repair and only pay what I consider appropriate. NEITHER CAN THE INSURANCE COMPANIES !
Now while I am nor suggesting that the other driver deliberately caused the collision they are by accepting blame guilty of driving with undue care and attention or in extreme cases dangerous driving (only prosecutable by the police). However the fact that they have damaged your property either deliberately or accidentally (in this case your car) as a direct result of their actions means that they have the same liabilities as the hammer scenarios and can not hide behind their insurance company. This is why you turn your legal eagles against the individual if their insurance wont play ball.
You are entitled in law to full recompense for all associated costs (including out of pocket expenses and loss of earnings, telephone calls, postage, your time, etc.) as well as full repair to original condition no matter how much it may cost to do so.
Let us say you owned a rare Ferrari one of only two in existence then they would have to purchase the other existing car as a replacement. If it was not for sale then you could name your own price. They can not offer you a fraction of its worth. The principle is the same but in this case there are many Landrovers available and it may be that you would settle for a much newer version as a replacement or an upgrade to your such as galvanised chassis etc.
I suggest you contact your insurance company and start the ball rolling. Dont be fooled by their b*llsh*t and lies. The law is the law and they well know it.