first of all get the police report..if its the fault of other person then his insurance will have to pay for your car repairing and if its your fault then simply get the police report and go to your insurance company and they will get your car repaired only if you have full insurance.but you can't claim for another car from the insurance while your car will go for repairing..to my knowledge there is no insurance company who gives you replacement even if you have full insurance....