The responsibility of an employee for a car rented by the employer

Dear team,

Hope you are well!

I was given a company car to use by my employer. The contract of the rent-a-car is in the company name, but they used my license as a person who will be using the car.

I was not the only one who used the car, but it was more for different company purposes (delivering the goods, going to clients, etc.). Now the company is closing and I was told to go and leave the car to the rent-a-car as my name is on the lease.

However, the rent-a-car refused to accept the car as the bill for it was never settled by the company, from the time when the car was originally rented (over a year ago).

The company has had some management changes and now they refuse to accept the car as well. I do not know what to do as this car is not my responsibility and I have to return it somehow to the company.

I cannot face the potential charges as the car was rented by the company, not by myself.

Any advice would be more than welcome.

Many thanks and best regards!