I recently noticed in my Escort panel van (my daily) I always (religiously) carry a small tool box with tools which will assist repair any difficulty at any time.
Sort of a guarantee, maybe a piece of mind thing.
I can't recall if I have ever needed it though. In the nearly 25 years I have owned it, the panel van has never broken down or refused to start anywhere else other than the front yard at home. I have never needed to tow it at any time.
I drive other cars, including the Mrs' car, however it has never occured to me to carry a tool box in these cars.