If your car is totalled, the insurance company is obligated to pay the Fair Market Value (FMV) of the vehicle at the time of the accident. This amount may be less than you currently owe on the car. This may also be less than you think the car is worth. Property damage can be negotiated but the insurance company is not obligated to pay additional funds to help you get a new car.
If your car is in a storage yard, you are obligated to mitigate your damages as the insurance company does not have to pay storage fees. Also, your vehicle must be moved, usually within 30 days or your car is at risk of being sold at auction. Once the vehicle is sold, there will not be a recovery for the property damage.