How far can you drive on a damaged run-flat tire?

We can put runflats (runflat inserts) on almost any tires as long as we have the rim. We take the original tires and put inside a roller insert or band to keep the original appearance but also allow the tires to travel 40-80 miles (or more depending on the road conditions) if they have a nail or are shot at to allow our clients to get out of the situation if they are attacked. These are designed to assist the vehicle to safely get out of the threat and protect the passengers inside.