Logbook loans are a form of credit that is accessible to people with a low credit rating; as long as they own their own car.
A logbook loan does not affect your credit rating, since you are transferring the ownership of the car to the lender and they ‘allow’ you to continue to drive it. This means that it you fail to repay the loan, they will stop ‘allowing’ you to drive it.
They do not need to repossess the car through the courts, since you already gave it to them. They can just come and take it.
It is widely considered that Logbook loans are a high risk method of borrowing money and should be avoided.