I'm not really sure what you think the difficulty is. A firefighter in fire protection gear hooks the burning car with a large metal chain, the other end goes to the fire truck, tow truck or winch, the car comes out of the building.
>I'm not really sure what you think the difficulty is.
the heat of the car and the burning surroundings, and of course the toxic fumes.
The building is made of ordinary building stuff like wood and plastic which can be extinguished using ordinary means, you just need to remove the car so it doesn't set it on fire again. The same means (dousing it with a fire hose) can temporarily lower the temperature of the car. Firefighters already have the equipment necessary to deal with toxic smoke.