The answer to this question depends on how safe you want to be when you temporarily leave your parked car in front of a shop or restaurant.
Of course, hardly a safe in your car would help to protect your belongings if your car itself is not protected.
However, to make it more difficult for a car thief, there are models that are screwed into the car at the desired location or locked with a long cable that is securely and simultaneously attached to your car.
A safe in the car is particularly suitable for business suppliers, couriers, assembly teams, taxi vehicles, bakers and anyone who frequently travels in the car with money or other valuables.