Exactly the same is true if you own the car outright. You as the owner of the vehicle will be contacted and asked to provide the details of the person who was driving at the time.
In the UK, if a driver is caught speeding, they'll (generally) also get points on their license and after accumulating 12 points, they'll (generally) lose their license for a while. Points decay on some frequency which I forget.
Anyway, what's to stop someone from driving a company car and then just paying the fines via the company and refusing the name the driver?
In Germany when that happens and the company cannot (or does not want to) name the driver... they may get ordered by the authority to keep a logbook. And such an order shows up at any police checkpoint - and if the cops run the plate, they will ask for the logbook. And check the logbook. And if the logbook isn't up to speed... that means some hefty fines.